Re: [zfs-discuss] ZFS volume corrupted?
I thought a ZFS file system wouldn't destroy a ZFS volume? Hmm, I'm not sure what to do now ... First of all, this zfs volume Data/subversion1 has been working for a year and suddenly after a reboot of the Solaris server, running of the zpool export and zpool import command, I get problems with this ZFS volume? Today I checked some more, after reading this guide: http://www.solarisinternals.com/wiki/index.php/ZFS_Troubleshooting_Guide My main question is: Is my ZFS volume which is part of a zpool lost or can I recover it? If I upgrade the Solaris server to the latest and do a zpool export and zpool import help? All advices appreciated :-) Here is some more information: -bash-3.00$ zfs list -o name,type,used,avail,ratio,compression,reserv,volsize Data/subversion1 NAMETYPE USED AVAIL RATIO COMPRESS RESERV VOLSIZE Data/subversion1 volume 22.5K 511G 1.00x off250G 250G I've also learned the the AVAIL column reports what's available in the zpool and NOT what's available in the ZFS volume. -bash-3.00$ sudo zpool status -v Password: pool: Data state: ONLINE scrub: scrub in progress, 5.86% done, 12h46m to go config: NAME STATE READ WRITE CKSUM Data ONLINE 0 0 0 c4t5000402001FC442Cd0 ONLINE 0 0 0 errors: No known data errors Interesting thing here is that the scrub process should be finished today but the progress is much slower than reported here. And will the scrub process help anything in my case? -bash-3.00$ sudo fmdump TIME UUID SUNW-MSG-ID Nov 15 2007 10:16:38 8aa789d2-7f3a-45d5-9f5c-c101d73b795e ZFS-8000-CS Oct 14 09:31:40.8179 8c7d9847-94b7-ec09-8da7-c352de405b78 FMD-8000-2K bash-3.00$ sudo fmdump -ev TIME CLASS ENA Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e688d11500401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68926e600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68d8bb600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68e98191 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e692a4ca1 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.data 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 10:16:12 ereport.fs.zfs.vdev.open_failed 0x0533bb1b56400401 Nov 15 2007 10:16:12 ereport.fs.zfs.zpool 0x0533bb1b56400401 Oct 14 09:31:31.6092 ereport.fm.fmd.log_append 0x02eb96a8b6502801 Oct 14 09:31:31.8643 ereport.fm.fmd.mod_init 0x02ec89eadd100401 On 3. mars. 2009, at 08.10, Lars-Gunnar Persson wrote: I've turned off iSCSI sharing at the moment. My first question is: how can zfs report available is larger than reservation on a zfs volume? I also know that used mshould be larger than 22.5 K. Isn't this
Re: [zfs-discuss] ZFS volume corrupted?
Hi, The reason zfs is saying that the available is larger is because in Zfs the size of the pool is always available to the all the zfs filesystems that reside in the pool. Setting a reservation will gaurntee that the reservation size is reserved for the filesystem/volume but you can change that on the fly. You can see that if you create another filsystem within the pool that the reservation in use by your volume will have be deducted from the available size. Like below: r...@testfs create -V 10g testpool/test r...@testfs get all testpool NAME PROPERTY VALUE SOURCE testpool type filesystem - testpool creation Wed Feb 11 13:17 2009 - testpool used 10.1G - testpool available124G - testpool referenced 100M - testpool compressratio1.00x - testpool mounted yes- Here the available is 124g as the volume has been set to 10g from a pool of 134g. If we set a reservation like this r...@test1 set reservation=10g testpool/test r...@test1 zfs get all testpool/test NAME PROPERTY VALUE SOURCE testpool/test type volume - testpool/test creation Tue Mar 3 10:13 2009 - testpool/test used 10G- testpool/test available134G - testpool/test referenced 16K- testpool/test compressratio1.00x - We can see that the available is now 134g, which is the avilable size of the rest of the pool + the 10g reservation that we have set. So in theory this volume can grow to the complete size of the pool. So if we have a look at the availble space now in the pool we see r...@test1# zfs get all testpool NAME PROPERTY VALUE SOURCE testpool type filesystem - testpool creation Wed Feb 11 13:17 2009 - testpool used 10.1G - testpool available124G - testpool referenced 100M - testpool compressratio1.00x - testpool mounted yes- 124g with 10g used to account for the size of the volume ! So if we now create another filesystem like this r...@test1# zfs create testpool/test3 r...@test1# zfs get all testpool/test3 NAMEPROPERTY VALUE SOURCE testpool/test3 type filesystem - testpool/test3 creation Tue Mar 3 10:19 2009 - testpool/test3 used 18K- testpool/test3 available124G - testpool/test3 referenced 18K- testpool/test3 compressratio1.00x - testpool/test3 mounted yes- We see that the total amount available to the filesystem is the amount of the space in the pool minus the 10g reservation. Lets set the reservation to something bigger. r...@test1# zfs set volsize=100g testpool/test r...@test1# zfs set reservation=100g testpool/test r...@test1# zfs get all testpool/test NAME PROPERTY VALUE SOURCE testpool/test type volume - testpool/test creation Tue Mar 3 10:13 2009 - testpool/test used 100G - testpool/test available134G - testpool/test referenced 16K- So the available is still 134G, which is the rest of the pool + the reservation set. r...@test1# zfs get all testpool NAME PROPERTY VALUE SOURCE testpool type filesystem - testpool creation Wed Feb 11 13:17 2009 - testpool used 100G - testpool available33.8G - testpool referenced 100M - testpool compressratio1.00x - testpool mounted yes- The pool however now only has 33.8G left, which should be the same for all the other filesystems in the pool. Hope that helps. -Original Message- From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-boun...@opensolaris.org]on Behalf Of Lars-Gunnar Persson Sent: 03 March 2009 07:11 To: Richard Elling Cc: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] ZFS volume corrupted? * This e-mail has been received by the Revenue Internet e-mail service. (IP) * I've turned off iSCSI sharing at the moment. My first question is: how can zfs report available is larger than reservation on a zfs volume? I also know that used mshould be larger than 22.5 K. Isn't this strange? Lars-Gunnar Persson Den 3. mars. 2009 kl. 00.38
Re: [zfs-discuss] ZFS volume corrupted?
Thank you for your long reply. I don't believe that will help me get my ZFS volume back though, From my last reply to this list I confirm that I do understand what the AVAIL column is reporting when running the zfs list command. hmm, still confused ... Regards, Lars-Gunnar Persson On 3. mars. 2009, at 11.26, O'Shea, Damien wrote: Hi, The reason zfs is saying that the available is larger is because in Zfs the size of the pool is always available to the all the zfs filesystems that reside in the pool. Setting a reservation will gaurntee that the reservation size is reserved for the filesystem/volume but you can change that on the fly. You can see that if you create another filsystem within the pool that the reservation in use by your volume will have be deducted from the available size. Like below: r...@testfs create -V 10g testpool/test r...@testfs get all testpool NAME PROPERTY VALUE SOURCE testpool type filesystem - testpool creation Wed Feb 11 13:17 2009 - testpool used 10.1G - testpool available124G - testpool referenced 100M - testpool compressratio1.00x - testpool mounted yes- Here the available is 124g as the volume has been set to 10g from a pool of 134g. If we set a reservation like this r...@test1 set reservation=10g testpool/test r...@test1 zfs get all testpool/test NAME PROPERTY VALUE SOURCE testpool/test type volume - testpool/test creation Tue Mar 3 10:13 2009 - testpool/test used 10G- testpool/test available134G - testpool/test referenced 16K- testpool/test compressratio1.00x - We can see that the available is now 134g, which is the avilable size of the rest of the pool + the 10g reservation that we have set. So in theory this volume can grow to the complete size of the pool. So if we have a look at the availble space now in the pool we see r...@test1# zfs get all testpool NAME PROPERTY VALUE SOURCE testpool type filesystem - testpool creation Wed Feb 11 13:17 2009 - testpool used 10.1G - testpool available124G - testpool referenced 100M - testpool compressratio1.00x - testpool mounted yes- 124g with 10g used to account for the size of the volume ! So if we now create another filesystem like this r...@test1# zfs create testpool/test3 r...@test1# zfs get all testpool/test3 NAMEPROPERTY VALUE SOURCE testpool/test3 type filesystem - testpool/test3 creation Tue Mar 3 10:19 2009 - testpool/test3 used 18K- testpool/test3 available124G - testpool/test3 referenced 18K- testpool/test3 compressratio1.00x - testpool/test3 mounted yes- We see that the total amount available to the filesystem is the amount of the space in the pool minus the 10g reservation. Lets set the reservation to something bigger. r...@test1# zfs set volsize=100g testpool/test r...@test1# zfs set reservation=100g testpool/test r...@test1# zfs get all testpool/test NAME PROPERTY VALUE SOURCE testpool/test type volume - testpool/test creation Tue Mar 3 10:13 2009 - testpool/test used 100G - testpool/test available134G - testpool/test referenced 16K- So the available is still 134G, which is the rest of the pool + the reservation set. r...@test1# zfs get all testpool NAME PROPERTY VALUE SOURCE testpool type filesystem - testpool creation Wed Feb 11 13:17 2009 - testpool used 100G - testpool available33.8G - testpool referenced 100M - testpool compressratio1.00x - testpool mounted yes- The pool however now only has 33.8G left, which should be the same for all the other filesystems in the pool. Hope that helps. -Original Message- From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-boun...@opensolaris.org]on Behalf Of Lars-Gunnar Persson Sent: 03 March 2009 07:11 To: Richard Elling Cc: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] ZFS volume corrupted? * This e-mail has been
Re: [zfs-discuss] ZFS volume corrupted?
I run a new command now zdb. Here is the current output: -bash-3.00$ sudo zdb Data version=4 name='Data' state=0 txg=9806565 pool_guid=6808539022472427249 vdev_tree type='root' id=0 guid=6808539022472427249 children[0] type='disk' id=0 guid=2167768931511572294 path='/dev/dsk/c4t5000402001FC442Cd0s0' devid='id1,s...@n6000402001fc442c6e1a0e97/a' whole_disk=1 metaslab_array=14 metaslab_shift=36 ashift=9 asize=11801587875840 Uberblock magic = 00bab10c version = 4 txg = 9842225 guid_sum = 8976307953983999543 timestamp = 1236084668 UTC = Tue Mar 3 13:51:08 2009 Dataset mos [META], ID 0, cr_txg 4, 392M, 1213 objects ... [snip] Dataset Data/subversion1 [ZVOL], ID 3527, cr_txg 2514080, 22.5K, 3 objects ... [snip] Dataset Data [ZPL], ID 5, cr_txg 4, 108M, 2898 objects Traversing all blocks to verify checksums and verify nothing leaked ... and I'm still waiting for this process to finish. On 3. mars. 2009, at 11.18, Lars-Gunnar Persson wrote: I thought a ZFS file system wouldn't destroy a ZFS volume? Hmm, I'm not sure what to do now ... First of all, this zfs volume Data/subversion1 has been working for a year and suddenly after a reboot of the Solaris server, running of the zpool export and zpool import command, I get problems with this ZFS volume? Today I checked some more, after reading this guide: http://www.solarisinternals.com/wiki/index.php/ZFS_Troubleshooting_Guide My main question is: Is my ZFS volume which is part of a zpool lost or can I recover it? If I upgrade the Solaris server to the latest and do a zpool export and zpool import help? All advices appreciated :-) Here is some more information: -bash-3.00$ zfs list -o name,type,used,avail,ratio,compression,reserv,volsize Data/subversion1 NAMETYPE USED AVAIL RATIO COMPRESS RESERV VOLSIZE Data/subversion1 volume 22.5K 511G 1.00x off250G 250G I've also learned the the AVAIL column reports what's available in the zpool and NOT what's available in the ZFS volume. -bash-3.00$ sudo zpool status -v Password: pool: Data state: ONLINE scrub: scrub in progress, 5.86% done, 12h46m to go config: NAME STATE READ WRITE CKSUM Data ONLINE 0 0 0 c4t5000402001FC442Cd0 ONLINE 0 0 0 errors: No known data errors Interesting thing here is that the scrub process should be finished today but the progress is much slower than reported here. And will the scrub process help anything in my case? -bash-3.00$ sudo fmdump TIME UUID SUNW-MSG-ID Nov 15 2007 10:16:38 8aa789d2-7f3a-45d5-9f5c-c101d73b795e ZFS-8000-CS Oct 14 09:31:40.8179 8c7d9847-94b7-ec09-8da7-c352de405b78 FMD-8000-2K bash-3.00$ sudo fmdump -ev TIME CLASS ENA Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e688d11500401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68926e600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68d8bb600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68e98191 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e692a4ca1 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741
Re: [zfs-discuss] ZFS volume corrupted?
And then the zdb process ends with: Traversing all blocks to verify checksums and verify nothing leaked ... out of memory -- generating core dump Abort (core dumped) hmm, what does that mean?? I also ran these commands: -bash-3.00$ sudo fmstat module ev_recv ev_acpt wait svc_t %w %b open solve memsz bufsz cpumem-retire0 0 0.00.1 0 0 0 0 0 0 disk-transport 0 0 0.04.1 0 0 0 0 32b 0 eft 0 0 0.05.7 0 0 0 0 1.4M 0 fmd-self-diagnosis 0 0 0.00.2 0 0 0 0 0 0 io-retire0 0 0.00.2 0 0 0 0 0 0 snmp-trapgen 0 0 0.00.1 0 0 0 0 32b 0 sysevent-transport 0 0 0.0 1520.8 0 0 0 0 0 0 syslog-msgs 0 0 0.00.1 0 0 0 0 0 0 zfs-diagnosis 301 0 0.00.0 0 0 2 0 120b80b zfs-retire 0 0 0.00.3 0 0 0 0 0 0 -bash-3.00$ sudo fmadm config MODULE VERSION STATUS DESCRIPTION cpumem-retire1.1 active CPU/Memory Retire Agent disk-transport 1.0 active Disk Transport Agent eft 1.16active eft diagnosis engine fmd-self-diagnosis 1.0 active Fault Manager Self-Diagnosis io-retire1.0 active I/O Retire Agent snmp-trapgen 1.0 active SNMP Trap Generation Agent sysevent-transport 1.0 active SysEvent Transport Agent syslog-msgs 1.0 active Syslog Messaging Agent zfs-diagnosis1.0 active ZFS Diagnosis Engine zfs-retire 1.0 active ZFS Retire Agent -bash-3.00$ sudo zpool upgrade -v This system is currently running ZFS version 4. The following versions are supported: VER DESCRIPTION --- 1 Initial ZFS version 2 Ditto blocks (replicated metadata) 3 Hot spares and double parity RAID-Z 4 zpool history For more information on a particular version, including supported releases, see: http://www.opensolaris.org/os/community/zfs/version/N Where 'N' is the version number. I hope I've provided enough information for all you ZFS experts out there. Any tips or solutions in sight? Or is this ZFS gone completely? Lars-Gunnar Persson On 3. mars. 2009, at 13.58, Lars-Gunnar Persson wrote: I run a new command now zdb. Here is the current output: -bash-3.00$ sudo zdb Data version=4 name='Data' state=0 txg=9806565 pool_guid=6808539022472427249 vdev_tree type='root' id=0 guid=6808539022472427249 children[0] type='disk' id=0 guid=2167768931511572294 path='/dev/dsk/c4t5000402001FC442Cd0s0' devid='id1,s...@n6000402001fc442c6e1a0e97/a' whole_disk=1 metaslab_array=14 metaslab_shift=36 ashift=9 asize=11801587875840 Uberblock magic = 00bab10c version = 4 txg = 9842225 guid_sum = 8976307953983999543 timestamp = 1236084668 UTC = Tue Mar 3 13:51:08 2009 Dataset mos [META], ID 0, cr_txg 4, 392M, 1213 objects ... [snip] Dataset Data/subversion1 [ZVOL], ID 3527, cr_txg 2514080, 22.5K, 3 objects ... [snip] Dataset Data [ZPL], ID 5, cr_txg 4, 108M, 2898 objects Traversing all blocks to verify checksums and verify nothing leaked ... and I'm still waiting for this process to finish. On 3. mars. 2009, at 11.18, Lars-Gunnar Persson wrote: I thought a ZFS file system wouldn't destroy a ZFS volume? Hmm, I'm not sure what to do now ... First of all, this zfs volume Data/subversion1 has been working for a year and suddenly after a reboot of the Solaris server, running of the zpool export and zpool import command, I get problems with this ZFS volume? Today I checked some more, after reading this guide: http://www.solarisinternals.com/wiki/index.php/ZFS_Troubleshooting_Guide My main question is: Is my ZFS volume which is part of a zpool lost or can I recover it? If I upgrade the Solaris server to the latest and do a zpool export and zpool import help? All advices appreciated :-) Here is some more information: -bash-3.00$ zfs list -o name,type,used,avail,ratio,compression,reserv,volsize Data/ subversion1 NAMETYPE USED AVAIL RATIO COMPRESS RESERV VOLSIZE Data/subversion1 volume 22.5K 511G 1.00x off250G 250G I've also learned the the AVAIL column reports what's available in the zpool and NOT what's available in the ZFS volume. -bash-3.00$ sudo zpool status -v Password: pool: Data state: ONLINE scrub: scrub in progress, 5.86%
Re: [zfs-discuss] ZFS volume corrupted?
Lars-Gunnar, On Tue, Mar 03, 2009 at 11:18:27AM +0100, Lars-Gunnar Persson wrote: -bash-3.00$ zfs list -o name,type,used,avail,ratio,compression,reserv,volsize Data/subversion1 NAMETYPE USED AVAIL RATIO COMPRESS RESERV VOLSIZE Data/subversion1 volume 22.5K 511G 1.00x off250G 250G This shows that the volume still exists. Correct me if I am wrong here : - Did you mean that the contents of the volume subversion1 are corrupted ? What does that volume have on it ? Does it contain a filesystem which can can be mounted on Solaris ? If so, we could try mounting it locally on the Solaris box. This is to rule out any iSCSI issues. Also, do you have any snapshots of the volume ? If so, you could rollback to the latest snapshot. But, that would mean we lose some amount of data. Also, you mentioned that the volume was in use for a year. But, I see in the above output that it has only about 22.5K used. Is that correct ? I would have expected it to be higher. You should also check what 'zpool history -i ' says. Thanks and regards, Sanjeev I've also learned the the AVAIL column reports what's available in the zpool and NOT what's available in the ZFS volume. -bash-3.00$ sudo zpool status -v Password: pool: Data state: ONLINE scrub: scrub in progress, 5.86% done, 12h46m to go config: NAME STATE READ WRITE CKSUM Data ONLINE 0 0 0 c4t5000402001FC442Cd0 ONLINE 0 0 0 errors: No known data errors Interesting thing here is that the scrub process should be finished today but the progress is much slower than reported here. And will the scrub process help anything in my case? -bash-3.00$ sudo fmdump TIME UUID SUNW-MSG-ID Nov 15 2007 10:16:38 8aa789d2-7f3a-45d5-9f5c-c101d73b795e ZFS-8000-CS Oct 14 09:31:40.8179 8c7d9847-94b7-ec09-8da7-c352de405b78 FMD-8000-2K bash-3.00$ sudo fmdump -ev TIME CLASS ENA Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e688d11500401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68926e600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68d8bb600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68e98191 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e692a4ca1 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.data 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 10:16:12 ereport.fs.zfs.vdev.open_failed 0x0533bb1b56400401 Nov 15 2007 10:16:12 ereport.fs.zfs.zpool 0x0533bb1b56400401 Oct 14 09:31:31.6092 ereport.fm.fmd.log_append 0x02eb96a8b6502801 Oct 14 09:31:31.8643 ereport.fm.fmd.mod_init 0x02ec89eadd100401 On 3. mars. 2009, at 08.10,
Re: [zfs-discuss] ZFS volume corrupted?
On 3. mars. 2009, at 14.51, Sanjeev wrote: Thank you for your reply. Lars-Gunnar, On Tue, Mar 03, 2009 at 11:18:27AM +0100, Lars-Gunnar Persson wrote: -bash-3.00$ zfs list -o name,type,used,avail,ratio,compression,reserv,volsize Data/ subversion1 NAMETYPE USED AVAIL RATIO COMPRESS RESERV VOLSIZE Data/subversion1 volume 22.5K 511G 1.00x off250G 250G This shows that the volume still exists. Correct me if I am wrong here : - Did you mean that the contents of the volume subversion1 are corrupted ? I'm not 100% sure if it's the content of this volume or if it's the zpool that is corrupted. It was iSCSI exported to a Linux host where it was formatted as an ext3 file system. What does that volume have on it ? Does it contain a filesystem which can can be mounted on Solaris ? If so, we could try mounting it locally on the Solaris box. This is to rule out any iSCSI issues. I don't think that Solaris supports mounting of ext3 file systems or ? Also, do you have any snapshots of the volume ? If so, you could rollback to the latest snapshot. But, that would mean we lose some amount of data. Nope, No snapshots - since this is a subversion repository with versioning built in. I didn't think I'll end up in this situation. Also, you mentioned that the volume was in use for a year. But, I see in the above output that it has only about 22.5K used. Is that correct ? I would have expected it to be higher. You're absolutely right, the 22.5K is wrong. That is why I suspect zfs is doing something wrong ... You should also check what 'zpool history -i ' says. it says: -bash-3.00$ sudo zpool history Data | grep subversion 2008-04-02.09:08:53 zfs create -V 250GB Data/subversion1 2008-04-02.09:08:53 zfs set shareiscsi=on Data/subversion1 2008-08-14.14:13:58 zfs set shareiscsi=off Data/subversion1 2008-08-29.15:08:50 zfs set shareiscsi=on Data/subversion1 2009-03-02.10:37:36 zfs set shareiscsi=off Data/subversion1 2009-03-02.10:37:55 zfs set shareiscsi=on Data/subversion1 2009-03-02.11:37:22 zfs set shareiscsi=off Data/subversion1 2009-03-03.09:37:34 zfs set shareiscsi=on Data/subversion1 and: 2009-03-01.11:26:22 zpool export -f Data 2009-03-01.13:21:58 zpool import Data 2009-03-01.14:32:04 zpool scrub Data Thanks and regards, Sanjeev More info: I just rebooted the SOlaris server and no change in status: -bash-3.00$ zpool status -v pool: Data state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM Data ONLINE 0 0 0 c4t5000402001FC442Cd0 ONLINE 0 0 0 errors: No known data errors The scrubing has stopped and the zdb command crashed the server. I've also learned the the AVAIL column reports what's available in the zpool and NOT what's available in the ZFS volume. -bash-3.00$ sudo zpool status -v Password: pool: Data state: ONLINE scrub: scrub in progress, 5.86% done, 12h46m to go config: NAME STATE READ WRITE CKSUM Data ONLINE 0 0 0 c4t5000402001FC442Cd0 ONLINE 0 0 0 errors: No known data errors Interesting thing here is that the scrub process should be finished today but the progress is much slower than reported here. And will the scrub process help anything in my case? -bash-3.00$ sudo fmdump TIME UUID SUNW-MSG-ID Nov 15 2007 10:16:38 8aa789d2-7f3a-45d5-9f5c-c101d73b795e ZFS-8000-CS Oct 14 09:31:40.8179 8c7d9847-94b7-ec09-8da7-c352de405b78 FMD-8000-2K bash-3.00$ sudo fmdump -ev TIME CLASS ENA Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6850ff400401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e688d11500401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68926e600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68a3d3900401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68bc6741 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68d8bb600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68da5b51 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e6897db600401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68e98191 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e68f0c9800401 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e69038551 Nov 15 2007 09:33:52 ereport.fs.zfs.io 0x915e690a11000401 Nov 15 2007
Re: [zfs-discuss] GSoC 09 zfs ideas?
Matthew Ahrens wrote: Blake wrote: zfs send is great for moving a filesystem with lots of tiny files, since it just handles the blocks :) I'd like to see: pool-shrinking (and an option to shrink disk A when i want disk B to become a mirror, but A is a few blocks bigger) I'm working on it. install to mirror from the liveCD gui zfs recovery tools (sometimes bad things happen) We've actually discussed this at length and there will be some work started soon. automated installgrub when mirroring an rpool I'm working on it. - George --matt ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] GSoC 09 zfs ideas?
Richard Elling wrote: David Magda wrote: On Feb 27, 2009, at 18:23, C. Bergström wrote: Blake wrote: Care to share any of those in advance? It might be cool to see input from listees and generally get some wheels turning... raidz boot support in grub 2 is pretty high on my list to be honest.. Which brings up another question of where is the raidz stuff mostly? usr/src/uts/common/fs/zfs/vdev_raidz.c ? Any high level summary, docs or blog entries of what the process would look like for a raidz boot support is also appreciated. Given the threads that have appeared on this list lately, how about codifying / standardizing the output of zfs send so that it can be backed up to tape? :) It wouldn't help. zfs send is a data stream which contains parts of files, not files (in the usual sense), so there is no real way to take a send stream and extract a file, other than by doing a receive. At the risk of repeating the Best Practices Guide (again): The zfs send and receive commands do not provide an enterprise-level backup solution. -- richard Along these lines you can envision a restore tool that is capable of reading multiple 'zfs send' streams to construct the various versions of files which are available. In addition, it would be nice if the tool could read in the streams and then make it easy to traverse and construct a single file from all available streams. For example, if I have 5 send streams then the tool would be able to ingest all the data and provide a directory structure similar to .zfs which would allow you to restore any file which is completely intact. - George ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs list extentions related to pNFS
Yes. -- richard Lisa Week wrote: Hi, I am soliciting input from the ZFS engineers and/or ZFS users on an extension to zfs list. Thanks in advance for your feedback. Quick Background: The pNFS project (http://opensolaris.org/os/project/nfsv41/) http://opensolaris.org/os/project/nfsv41/%29 is adding a new DMU object set type which is used on the pNFS data server to store pNFS stripe DMU objects. A pNFS dataset gets created with the zfs create command and gets displayed using zfs list. Specific Question: Should the pNFS datasets show up in the default zfs list output? Just as with ZFS file systems and ZVOLs, the number of pNFS datasets that exist on a data server will vary depending on the configuration. The following is output from the modified command and reflects the current mode of operation (i.e. zfs list lists filesystems, volumes and pnfs datasets by default): (pnfs-17-21:/home/lisagab):6 % zfs list NAMEUSED AVAIL REFER MOUNTPOINT rpool 30.0G 37.0G 32.5K /rpool rpool/ROOT 18.2G 37.0G18K legacy rpool/ROOT/snv_105 18.2G 37.0G 6.86G / rpool/ROOT/snv_105/var 11.4G 37.0G 11.4G /var rpool/dump 9.77G 37.0G 9.77G - rpool/export 40K 37.0G21K /export rpool/export/home19K 37.0G19K /export/home rpool/pnfsds 31K 37.0G15K - ---pNFS dataset rpool/pnfsds/47C80414080A4A4216K 37.0G16K - ---pNFS dataset rpool/swap 1.97G 38.9G 4.40M - (pnfs-17-21:/home/lisagab):7 % zfs list -t pnfsdata NAMEUSED AVAIL REFER MOUNTPOINT rpool/pnfsds 31K 37.0G15K - rpool/pnfsds/47C80414080A4A4216K 37.0G16K - (pnfs-17-21:/home/lisagab):8 % zfs get all rpool/pnfsds NAME PROPERTY VALUE SOURCE rpool/pnfsds type pnfs-dataset - rpool/pnfsds creation Mon Feb 2 13:56 2009 - rpool/pnfsds used 31K- rpool/pnfsds available 37.0G - rpool/pnfsds referenced15K- rpool/pnfsds compressratio 1.00x - rpool/pnfsds quota none default rpool/pnfsds reservation none default rpool/pnfsds recordsize128K default rpool/pnfsds checksum on default rpool/pnfsds compression offdefault rpool/pnfsds zoned offdefault rpool/pnfsds copies1 default rpool/pnfsds refquota none default rpool/pnfsds refreservationnone default rpool/pnfsds sharepnfs offdefault rpool/pnfsds mds none default Thanks, Lisa ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] GSoC 09 zfs ideas?
George Wilson wrote: Along these lines you can envision a restore tool that is capable of reading multiple 'zfs send' streams to construct the various versions of files which are available. In addition, it would be nice if the tool could read in the streams and then make it easy to traverse and construct a single file from all available streams. For example, if I have 5 send streams then the tool would be able to ingest all the data and provide a directory structure similar to .zfs which would allow you to restore any file which is completely intact. In essence, this is how HSM works (qv ADM project). You get a view of the file system for which the data in the files may reside on media elsewhere. Good stuff. -- richard ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] zfs with PERC 6/i card?
I am trying to set up OpenSolaris on a Dell 2950 III that has 8 SAS drives connected to a PERC 6/i card. I am wondering what the best way to configure the RAID in the BIOS for ZFS. Part of the problem is there seems to be some confusion inside Dell as to what can be done with the card. Their tech support suggested making the 8 drives show up by making them 8 raid0 devices. I researched online to see if I could find anyone doing that and the only person I found indicated there were issues with needing to reboot the machine because the controller would take drives totally offline when there were problems. The sales rep I have been working with said the card can be configured with a no-raid option. I am not sure why tech support did not know about this (I spent a long time taking with them about if we could turn RAID off on the machine). I could not find anyone talking about running zfs on a system configured this way. I would like to hear if anyone is using ZFS with this card and how you set it up, and what, if any, issues you've had with that set up. Thanks -Kristin -- http://tomorrowisobsolete.blogspot.com http://kamundse.blogspot.com http://flickr.com/photos/kamundse/ ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] GSoC 09 zfs ideas?
Just my $0.02, but would pool shrinking be the same as vdev evacuation? I'm quite interested in vdev evacuation as an upgrade path for multi-disk pools. This would be yet another reason to for folks to use ZFS at home (you only have to buy cheap disks), but it would also be a good to have that ability from an enterprise perspective, as I'm sure we've all engineered ourselves into a corner one time or another... It's a much cleaner, safer, and possibly much faster alternative to systematically pulling drives and letting zfs resilver onto a larger disk, in order to upgrade a pool in-place, and in production. basically, what I'm thinking is: zpool remove mypool list of devices/vdevs Allow time for ZFS to vacate the vdev(s), and then light up the OK to remove light on each evacuated disk. -Greg Blake Irvin wrote: Shrinking pools would also solve the right-sizing dilemma. Sent from my iPhone On Feb 28, 2009, at 3:37 AM, Joe Esposito j...@j-espo.com wrote: I'm using opensolaris and zfs at my house for my photography storage as well as for an offsite backup location for my employer and several side web projects. I have an 80g drive as my root drive. I recently took posesion of 2 74g 10k drives which I'd love to add as a mirror to replace the 80 g drive. From what I gather it is only possible if I zfs export my storage array and reinstall solaris on the new disks. So I guess I'm hoping zfs shrink and grow commands show up sooner or later. Just a data point. Joe Esposito www.j-espo.com On 2/28/09, C. Bergström cbergst...@netsyncro.com wrote: Blake wrote: Gnome GUI for desktop ZFS administration On Fri, Feb 27, 2009 at 9:13 PM, Blake blake.ir...@gmail.com wrote: zfs send is great for moving a filesystem with lots of tiny files, since it just handles the blocks :) I'd like to see: pool-shrinking (and an option to shrink disk A when i want disk B to become a mirror, but A is a few blocks bigger) This may be interesting... I'm not sure how often you need to shrink a pool though? Could this be classified more as a Home or SME level feature? install to mirror from the liveCD gui I'm not working on OpenSolaris at all, but for when my projects installer is more ready /we/ can certainly do this.. zfs recovery tools (sometimes bad things happen) Agreed.. part of what I think keeps zfs so stable though is the complete lack of dependence on any recovery tools.. It forces customers to bring up the issue instead of dirty hack and nobody knows. automated installgrub when mirroring an rpool This goes back to an installer option? ./C ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Can VirtualBox run a 64 bit guests on 32 bit host
hp == Harry Putnam rea...@newsguy.com writes:
hp I'm thinking of turning to Asus again and making sure there is
hp onboard SATA with at least 4 prts and preferebly 6.
I would like 64-bit hardware with ECC, 8GB RAM, and a good Ethernet
chip, that can run both Linux and Solaris. I do not plan to use the
onboard SATA. So far I'm having nasty problems with an nForce 750a
board from asus (M3N72-D) under Linux.
* random powerdowns. about once per week.
* freezes setting the rtc clock. as in, locks the whole board hard.
and confuses something deep inside the board, not just Linux. Why
do I think this? I've set it to ``power on after power failure''
which it normally obeys, and I know it normally obeys because I
always do cold-boots of this board because of other strange
intermittent problems below. But after such a clock-set freeze, i
try to cold-boot, and it stays off until I press the front panel
button disrespecting the BIOS setting (and making a Baytech strip
useless. piece of shit!)
* sound card attaches sometimes, not other times. In 'cat
/proc/interrupts' I see the sound card shares an interrupt with USB
(which AIUI it should not need to do with ACPI and ioapic, aren't
there plenty of interrupts now?), and it seems to march through
interrupt wirings after each warm boot, always picking a different
one, so I blame the Asus BIOS. I think it attaches about 1/3 the
time. It does play sound when it attaches.
* a USB key that works with other motherboards does not work with
this one. I am not trying to boot off the key. I boot with
Etherboot PXE. I'm only trying to use the key under the booted OS,
and it does not work, while the same OS on a different motherboard
is able to use the key for months without problem.
* with the Supermicro/Marvell 8-SATA-port PCI card installed, the
Asus board will not enter the Blue Screen of Setup. Sometimes it
does, though, maybe 1 in 10 times. It runs fine with this card
installed, just won't enter setup unless I remove it.
* with ``fill memory holes'' enabled in BSoS, as it is by default,
memtest86+ crashes and reboots the machine. When I turn this off,
memtest86+ runs fine. I'm not sure how I even found this
workaround, but seriously, I would rather waste time on mailing
lists than mess aroudn with such junk.
maybe other things that I'm forgetting.
Under Solaris, and I think also Linux, the nForce 750a's nvidia
ethernet chip is pretty performant. (newegg says realtek ethernet,
but this is wrong, it's an nvidia MAC). And also nvidia AHCI SATA
which is supposedly better than AMD AHCI SATA. I can verify at least
four SATA ports work well, on Linux, but I haven't tried the other two
``RAID'' SATA ports which are rumored to be on a crappy JMicron
controller with weird mandatory fakeRAID or something. Maybe they
work fine, I don't know.
While the ATI/AMD chipset boards actually do have crappy realtek
ethernet (crappy performance on every OS), and there is supposedly a
bug in their AMD AHCI that has persisted through several chip
steppings that makes SATA slow under Linux and buggy under Solaris, and
I've heard no resolution so I'm operating under the assumption the
most recent 790{X,GX,FX}/SB750 still have the bug.
There's dispute about updating the BIOS. in general you have to
update it to work with the latest CPU's. Sometimes you need an old
CPU to run the BIOS updater before you can run the new CPU, even if
you ordered the CPU and the motherboard on the same invoice. That
seems highly bogus to me. I did not update mine at first, then
updated it to try to solve the random powerdowns, which it did not.
Other forum posters say the first BIOS revisions are written by the
BIOS programmers who did well in college, while the later updates for
newer CPUs are written by the ones who barely scraped by and are full
of regressions, and since they're not selling a new motherboard with
the update they don't give a shit and would almost rather brick the
board and force you to upgrade, so these posters say the newest BIOS
builds should be *AVOIDED*. I've no idea!
Maybe you should buy two or three cheap boards and try them all, since
the CPU and RAM make up a bigger fraction of the cost. I've just
bought this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813186150
because it has Broadcom ethernet, which is actually a good-performing
chip with a decent driver, but this chip has a lot of errata among
revisions so your Ethernet driver has to be updated more aggressively
than it does with the Intel gigabit chips. I'm hoping it is the older
non-RNIC version, because the newest Broadcom chips have a
(newly-added, cough COUGH) Proprietary driver in Solaris, while I
think the older chips have a free driver. Broadcom, like AHCI SATA,
is decent and much easier to obtain onboard than on a PCI card, so
it's nice to find a board which has it.
This one is also
Re: [zfs-discuss] GSoC 09 zfs ideas?
Greg Mason wrote: Just my $0.02, but would pool shrinking be the same as vdev evacuation? Yes. basically, what I'm thinking is: zpool remove mypool list of devices/vdevs Allow time for ZFS to vacate the vdev(s), and then light up the OK to remove light on each evacuated disk. That's the goal. --matt ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Can VirtualBox run a 64 bit guests on 32 bit host
On Tue, 3 Mar 2009, Miles Nordin wrote: I would like 64-bit hardware with ECC, 8GB RAM, and a good Ethernet chip, that can run both Linux and Solaris. I do not plan to use the onboard SATA. So far I'm having nasty problems with an nForce 750a board from asus (M3N72-D) under Linux. Did you accidentally blast this to the wrong group? This is the ZFS discussion group, not Linux on my broken hardware group. Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer,http://www.GraphicsMagick.org/ ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] zfs related google summer of code ideas - your vote
For reasons which I don't care about Sun may not apply to be a gsoc organization this year. However, I'm not discouraged from trying to propose some exciting zfs related ideas. On/off list feel free to send your vote, let me know if you can mentor or if you know a company that could use it. Here's more or less what I've collected... 1) Excess ditto block removing + other green-bytes zfs+ features - *open source* (very hard.. can't be done in two months) 2) raidz boot support (planning phase and suitable student already found. could use more docs/info for proposal) 3) Additional zfs compression choices (good for archiving non-text files? 4) zfs cli interface to add safety checks (save your butt from deleting a pool worth more than your job) 5) Web or gui based admin interface 6) zfs defrag (was mentioned by someone working around petabytes of data..) 7) vdev evacuation as an upgrade path (which may depend or take advantage of zfs resize/shrink code) 8) zfs restore/repair tools (being worked on already?) 9) Timeslider ported to kde4.2 ( *cough* couldn't resist, but put this on the list) 10) Did I miss something.. #2 Currently planning and collecting as much information for the proposal as possible. Today all ufs + solaris grub2 issues were resolved and will likely be committed to upstream soon. There is a one liner fix in the solaris kernel also needed, but that can be binary hacked worst case. #5/9 This also may be possible for an outside project.. either web showcase or tighter desktop integration.. The rest may just be too difficult in a two month period, not something which can go upstream or not enough time to really plan well enough.. Even if this isn't done for gsoc it may still be possible for the community to pursue some of these.. To be a mentor will most likely require answering daily/weekly technical questions, ideally being on irc and having patience. On top of this I'll be available to help as much as technically possible, keep the student motivated and the projects on schedule. ./Christopher #ospkg irc.freenode.net - (Mostly OpenSolaris development rambling) ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs related google summer of code ideas - your vote
C. Bergström wrote: For reasons which I don't care about Sun may not apply to be a gsoc organization this year. However, I'm not discouraged from trying to propose some exciting zfs related ideas. On/off list feel free to send your vote, let me know if you can mentor or if you know a company that could use it. Here's more or less what I've collected... 1) Excess ditto block removing + other green-bytes zfs+ features - *open source* (very hard.. can't be done in two months) 2) raidz boot support (planning phase and suitable student already found. could use more docs/info for proposal) 3) Additional zfs compression choices (good for archiving non-text files? 4) zfs cli interface to add safety checks (save your butt from deleting a pool worth more than your job) 5) Web or gui based admin interface FWIW, I just took at look at the BUI in b108 and it seems to have garnered some love since the last time I looked at it (a year ago?) I encourage folks to take a fresh look at it. https://localhost:6789 -- richard 6) zfs defrag (was mentioned by someone working around petabytes of data..) 7) vdev evacuation as an upgrade path (which may depend or take advantage of zfs resize/shrink code) 8) zfs restore/repair tools (being worked on already?) 9) Timeslider ported to kde4.2 ( *cough* couldn't resist, but put this on the list) 10) Did I miss something.. #2 Currently planning and collecting as much information for the proposal as possible. Today all ufs + solaris grub2 issues were resolved and will likely be committed to upstream soon. There is a one liner fix in the solaris kernel also needed, but that can be binary hacked worst case. #5/9 This also may be possible for an outside project.. either web showcase or tighter desktop integration.. The rest may just be too difficult in a two month period, not something which can go upstream or not enough time to really plan well enough.. Even if this isn't done for gsoc it may still be possible for the community to pursue some of these.. To be a mentor will most likely require answering daily/weekly technical questions, ideally being on irc and having patience. On top of this I'll be available to help as much as technically possible, keep the student motivated and the projects on schedule. ./Christopher #ospkg irc.freenode.net - (Mostly OpenSolaris development rambling) ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs related google summer of code ideas - your vote
On Tue, Mar 03, 2009 at 11:35:40PM +0200, C. Bergström wrote: 7) vdev evacuation as an upgrade path (which may depend or take advantage of zfs resize/shrink code) IIRC Matt Ahrens has said on this list that vdev evacuation/pool shrinking is being worked. So (7) would be duplication of effort. 8) zfs restore/repair tools (being worked on already?) IIRC Jeff Bonwick has said on this list that ubberblock rollback on import is now his higher priority. So working on (8) would be duplication of effort. 1) Excess ditto block removing + other green-bytes zfs+ features - *open source* (very hard.. can't be done in two months) Using the new block pointer re-write code you might be able to deal with re-creating blocks with more/fewer ditto copies (and compression, ...) with incremental effort. But ask Matt Ahrens. 6) zfs defrag (was mentioned by someone working around petabytes of data..) (6) probably depends on the new block pointer re-write code as well. But (6) may also be implied in vdev evac/pool shrink, so it may be duplication of effort. Nico -- ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs with PERC 6/i card?
On Tue, 03 Mar 2009 09:50:51 -0800 Kristin Amundsen avatarofsl...@gmail.com wrote: I am trying to set up OpenSolaris on a Dell 2950 III that has 8 SAS drives connected to a PERC 6/i card. I am wondering what the best way to configure the RAID in the BIOS for ZFS. Part of the problem is there seems to be some confusion inside Dell as to what can be done with the card. Their tech support suggested making the 8 drives show up by making them 8 raid0 devices. I researched online to see if I could find anyone doing that and the only person I found indicated there were issues with needing to reboot the machine because the controller would take drives totally offline when there were problems. The sales rep I have been working with said the card can be configured with a no-raid option. I am not sure why tech support did not know about this (I spent a long time taking with them about if we could turn RAID off on the machine). I could not find anyone talking about running zfs on a system configured this way. I would like to hear if anyone is using ZFS with this card and how you set it up, and what, if any, issues you've had with that set up. Gday Kristin, I didn't specifically test ZFS with this card when I was making the changes for 6712499 mpt should identify and report Dell SAS6/iR family of controllers However I would expect that if you could present 8 raid0 luns to the host then that should be at least a decent config to start using for ZFS. James C. McPherson -- Senior Kernel Software Engineer, Solaris Sun Microsystems http://blogs.sun.com/jmcp http://www.jmcp.homeunix.com/blog ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs with PERC 6/i card?
I would like to hear if anyone is using ZFS with this card and how you set it up, and what, if any, issues you've had with that set up. However I would expect that if you could present 8 raid0 luns to the host then that should be at least a decent config to start using for ZFS. I can confirm that we are doing that here (with 3 drives) and it's been fine for almost a year now. Jules ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs related google summer of code ideas - your vote
When I go here: http://opensolaris.org/os/project/isns/bui I get an error. Where are you getting BUI from? On Tue, Mar 3, 2009 at 5:16 PM, Richard Elling richard.ell...@gmail.comwrote: FWIW, I just took at look at the BUI in b108 and it seems to have garnered some love since the last time I looked at it (a year ago?) I encourage folks to take a fresh look at it. https://localhost:6789 -- richard ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs related google summer of code ideas - your vote
10) Did I miss something.. Somehow, what I posted on the web forum didn't make it to the mailing list digest... How about implementing dedup? This has been listed as an RFE for almost a year, http://bugs.opensolaris.org/view_bug.do?bug_id=6677093 and discussed here, http://www.opensolaris.org/jive/thread.jspa?messageID=256373. -- Maurice Volaski, mvola...@aecom.yu.edu Computing Support, Rose F. Kennedy Center Albert Einstein College of Medicine of Yeshiva University ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs related google summer of code ideas - your vote
On Tue, Mar 3, 2009 at 3:35 PM, C. Bergström cbergst...@netsyncro.comwrote: For reasons which I don't care about Sun may not apply to be a gsoc organization this year. However, I'm not discouraged from trying to propose some exciting zfs related ideas. On/off list feel free to send your vote, let me know if you can mentor or if you know a company that could use it. Here's more or less what I've collected... 1) Excess ditto block removing + other green-bytes zfs+ features - *open source* (very hard.. can't be done in two months) 2) raidz boot support (planning phase and suitable student already found. could use more docs/info for proposal) 3) Additional zfs compression choices (good for archiving non-text files? 4) zfs cli interface to add safety checks (save your butt from deleting a pool worth more than your job) 5) Web or gui based admin interface 6) zfs defrag (was mentioned by someone working around petabytes of data..) 7) vdev evacuation as an upgrade path (which may depend or take advantage of zfs resize/shrink code) 8) zfs restore/repair tools (being worked on already?) 9) Timeslider ported to kde4.2 ( *cough* couldn't resist, but put this on the list) 10) Did I miss something.. #2 Currently planning and collecting as much information for the proposal as possible. Today all ufs + solaris grub2 issues were resolved and will likely be committed to upstream soon. There is a one liner fix in the solaris kernel also needed, but that can be binary hacked worst case. #5/9 This also may be possible for an outside project.. either web showcase or tighter desktop integration.. The rest may just be too difficult in a two month period, not something which can go upstream or not enough time to really plan well enough.. Even if this isn't done for gsoc it may still be possible for the community to pursue some of these.. To be a mentor will most likely require answering daily/weekly technical questions, ideally being on irc and having patience. On top of this I'll be available to help as much as technically possible, keep the student motivated and the projects on schedule. ./Christopher I know plenty of home users would like the ability to add a single disk to a raid-z vdev in order to grow a disk at a time. --Tim ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs related google summer of code ideas - your vote
Blake wrote: When I go here: http://opensolaris.org/os/project/isns/bui I get an error. Â Where are you getting BUI from? The BUI is in webconsole which is available on your local machine at port 6789 https://localhost:6798 If you want to access it remotely, you'll need to change the configuration as documented http://docs.sun.com/app/docs/doc/817-1985/gdhgt?a=view -- richard On Tue, Mar 3, 2009 at 5:16 PM, Richard Elling richard.ell...@gmail.com mailto:richard.ell...@gmail.com wrote: FWIW, I just took at look at the BUI in b108 and it seems to have garnered some love since the last time I looked at it (a year ago?) I encourage folks to take a fresh look at it. Â https://localhost:6789 -- richard ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Oracle database on zfs
Hi, I am wondering if there is a guideline on how to configure ZFS on a server with Oracle database? We are experiencing some slowness on writes to ZFS filesystem. It take about 530ms to write a 2k data. We are running Solaris 10 u5 127127-11 and the back-end storage is a RAID5 EMC EMX. This is a small database with about 18gb storage allocated. Is there a tunable parameters that we can apply to ZFS to make it a little faster for writes. Oracle is using 8k block size, can we match zfs block size to oracle without destroying the data? $ zpool status zpraid0_e2 pool: zpraid0_e2 state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM zpraid0_e2 ONLINE 0 0 0 c3t6006048190101941533030453434d0 ONLINE 0 0 0 errors: No known data errors Thanks, ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Oracle database on zfs
Vahid Moghaddasi wrote: Hi, I am wondering if there is a guideline on how to configure ZFS on a server with Oracle database? Start with the Best Practices Guide http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide We are experiencing some slowness on writes to ZFS filesystem. It take about 530ms to write a 2k data. This seems unusual, unless the EMC is mismatched wrt how they may have implemented cache flush. The issues around this are described in the Evil Tuning Guide http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide#Cache_Flushes -- richard We are running Solaris 10 u5 127127-11 and the back-end storage is a RAID5 EMC EMX. This is a small database with about 18gb storage allocated. Is there a tunable parameters that we can apply to ZFS to make it a little faster for writes. Oracle is using 8k block size, can we match zfs block size to oracle without destroying the data? $ zpool status zpraid0_e2 pool: zpraid0_e2 state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM zpraid0_e2 ONLINE 0 0 0 c3t6006048190101941533030453434d0 ONLINE 0 0 0 errors: No known data errors Thanks, ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs related google summer of code ideas - your vote
That's what I thought you meant, and I got excited thinking that you were talking about OpenSolaris :) I'll see about getting the new packages and trying them out. On Tue, Mar 3, 2009 at 8:36 PM, Richard Elling richard.ell...@gmail.comwrote: Blake wrote: When I go here: http://opensolaris.org/os/project/isns/bui I get an error. Â Where are you getting BUI from? The BUI is in webconsole which is available on your local machine at port 6789 https://localhost:6798 If you want to access it remotely, you'll need to change the configuration as documented http://docs.sun.com/app/docs/doc/817-1985/gdhgt?a=view -- richard On Tue, Mar 3, 2009 at 5:16 PM, Richard Elling richard.ell...@gmail.commailto: richard.ell...@gmail.com wrote: FWIW, I just took at look at the BUI in b108 and it seems to have garnered some love since the last time I looked at it (a year ago?) I encourage folks to take a fresh look at it. Â https://localhost:6789 -- richard ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Oracle database on zfs
On Mar 3, 2009, at 20:51, Richard Elling wrote: This seems unusual, unless the EMC is mismatched wrt how they may have implemented cache flush. The issues around this are described in the Evil Tuning Guide http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide#Cache_Flushes Under the 5/08 and snv_72 note, the following text appears: The sd and ssd drivers should properly handle the SYNC_NV bit, so no changes should be needed. I'm assuming this relates to: http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6462690 So the caching-flushing scenario shouldn't be a problem with newer Solaris releases on higher-end arrays (assuming they support SBC-2's SYNV_NV). ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs with PERC 6/i card?
Julius Roberts wrote: I would like to hear if anyone is using ZFS with this card and how you set it up, and what, if any, issues you've had with that set up. However I would expect that if you could present 8 raid0 luns to the host then that should be at least a decent config to start using for ZFS. I can confirm that we are doing that here (with 3 drives) and it's been fine for almost a year now. I've accomplished that with a similar RAID card, set each drive to a 'JBOD' mode in the RAID BIOS, this properly presents individual devices to the OS so ZFS can do it's thing. One thing to note however is that if you remove a drive and reboot without replacing it the names of devices may be shifted forward a number causing havoc with a ZFS pool. Additionally, depending on the OS be, careful with attaching removable storage on bootup as this may also shift the names of the devices -- I've personally experienced it on FreeBSD 7.1 with a USB stick attached during reboot. The stick happened to take the name of my first drive on this RAID device. -Bryant ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs list extentions related to pNFS
Lisa, On Mon, Mar 02, 2009 at 09:58:08PM -0700, Lisa Week wrote: Should the pNFS datasets show up in the default zfs list output? Just as with ZFS file systems and ZVOLs, the number of pNFS datasets that exist on a data server will vary depending on the configuration. I think they should be listed. Thanks and regards, Sanjeev The following is output from the modified command and reflects the current mode of operation (i.e. zfs list lists filesystems, volumes and pnfs datasets by default): (pnfs-17-21:/home/lisagab):6 % zfs list NAMEUSED AVAIL REFER MOUNTPOINT rpool 30.0G 37.0G 32.5K /rpool rpool/ROOT 18.2G 37.0G18K legacy rpool/ROOT/snv_105 18.2G 37.0G 6.86G / rpool/ROOT/snv_105/var 11.4G 37.0G 11.4G /var rpool/dump 9.77G 37.0G 9.77G - rpool/export 40K 37.0G21K /export rpool/export/home19K 37.0G19K /export/home rpool/pnfsds 31K 37.0G15K - ---pNFS dataset rpool/pnfsds/47C80414080A4A4216K 37.0G16K - ---pNFS dataset rpool/swap 1.97G 38.9G 4.40M - (pnfs-17-21:/home/lisagab):7 % zfs list -t pnfsdata NAMEUSED AVAIL REFER MOUNTPOINT rpool/pnfsds 31K 37.0G15K - rpool/pnfsds/47C80414080A4A4216K 37.0G16K - (pnfs-17-21:/home/lisagab):8 % zfs get all rpool/pnfsds NAME PROPERTY VALUE SOURCE rpool/pnfsds type pnfs-dataset - rpool/pnfsds creation Mon Feb 2 13:56 2009 - rpool/pnfsds used 31K- rpool/pnfsds available 37.0G - rpool/pnfsds referenced15K- rpool/pnfsds compressratio 1.00x - rpool/pnfsds quota none default rpool/pnfsds reservation none default rpool/pnfsds recordsize128K default rpool/pnfsds checksum on default rpool/pnfsds compression offdefault rpool/pnfsds zoned offdefault rpool/pnfsds copies1 default rpool/pnfsds refquota none default rpool/pnfsds refreservationnone default rpool/pnfsds sharepnfs offdefault rpool/pnfsds mds none default Thanks, Lisa -- Sanjeev Bagewadi Solaris RPE Bangalore, India ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Comstar production-ready?
Hi, I recommended a ZFS-based archive solution to a client needing to have a network-based archive of 15TB of data in a remote datacentre. I based this on an X2200 + J4400, Solaris 10 + rsync. This was enthusiastically received, to the extent that the client is now requesting that their live system (15TB data on cheap SAN and Linux LVM) be replaced with a ZFS-based system. The catch is that they're not ready to move their production systems off Linux - so web, db and app layer will all still be on RHEL 5. As I see it, if they want to benefit from ZFS at the storage layer, the obvious solution would be a NAS system, such as a 7210, or something buillt from a JBOD and a head node that does something similar. The 7210 is out of budget - and I'm not quite sure how it presents its storage - is it NFS/CIFS? If so, presumably it would be relatively easy to build something equivalent, but without the (awesome) interface. The interesting alternative is to set up Comstar on SXCE, create zpools and volumes, and make these available either over a fibre infrastructure, or iSCSI. I'm quite excited by this as a solution, but I'm not sure if it's really production ready. What other options are there, and what advice/experience can you share? Thanks, S. -- Stephen Nelson-Smith Technical Director Atalanta Systems Ltd www.atalanta-systems.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Comstar production-ready?
On Wed, Mar 4, 2009 at 2:07 PM, Stephen Nelson-Smith sanel...@gmail.com wrote: As I see it, if they want to benefit from ZFS at the storage layer, the obvious solution would be a NAS system, such as a 7210, or something buillt from a JBOD and a head node that does something similar. The 7210 is out of budget - and I'm not quite sure how it presents its storage - is it NFS/CIFS? If so, presumably it would be it can also share block device (zvol) with iscsi The interesting alternative is to set up Comstar on SXCE, create zpools and volumes, and make these available either over a fibre infrastructure, or iSCSI. I'm quite excited by this as a solution, but I'm not sure if it's really production ready. If you want production rady software, starting from Solaris 10 8/07 Release you can create a ZFS volume as a Solaris iSCSI target device by setting the shareiscsi property on the ZFS volume. It's not Comstar, but it works. You may want consider opensolaris (I like it better than SXCE) instead of solaris if you want to stay on bleeding-edge, or even Nexenta which recentely integrated Comstar http://www.gulecha.org/2009/03/03/nexenta-iscsi-with-comstarzfs-integration/ Regards, Fajar ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Comstar production-ready?
Hi Stephen, NexentaStor v1.1.5+ could be an alternative, I think. And it includes new cool COMSTAR integration, i.e. ZFS shareiscsi property actually implements COMSTAR iSCSI target share functionality not available in SXCE. http://www.nexenta.com/nexentastor-relnotes On Wed, 2009-03-04 at 07:07 +, Stephen Nelson-Smith wrote: Hi, I recommended a ZFS-based archive solution to a client needing to have a network-based archive of 15TB of data in a remote datacentre. I based this on an X2200 + J4400, Solaris 10 + rsync. This was enthusiastically received, to the extent that the client is now requesting that their live system (15TB data on cheap SAN and Linux LVM) be replaced with a ZFS-based system. The catch is that they're not ready to move their production systems off Linux - so web, db and app layer will all still be on RHEL 5. As I see it, if they want to benefit from ZFS at the storage layer, the obvious solution would be a NAS system, such as a 7210, or something buillt from a JBOD and a head node that does something similar. The 7210 is out of budget - and I'm not quite sure how it presents its storage - is it NFS/CIFS? If so, presumably it would be relatively easy to build something equivalent, but without the (awesome) interface. The interesting alternative is to set up Comstar on SXCE, create zpools and volumes, and make these available either over a fibre infrastructure, or iSCSI. I'm quite excited by this as a solution, but I'm not sure if it's really production ready. What other options are there, and what advice/experience can you share? Thanks, S. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Comstar production-ready?
Stephen Nelson-Smith wrote: Hi, I recommended a ZFS-based archive solution to a client needing to have a network-based archive of 15TB of data in a remote datacentre. I based this on an X2200 + J4400, Solaris 10 + rsync. This was enthusiastically received, to the extent that the client is now requesting that their live system (15TB data on cheap SAN and Linux LVM) be replaced with a ZFS-based system. The catch is that they're not ready to move their production systems off Linux - so web, db and app layer will all still be on RHEL 5. At some point I am sure you will convince them to see the light! ;) As I see it, if they want to benefit from ZFS at the storage layer, the obvious solution would be a NAS system, such as a 7210, or something buillt from a JBOD and a head node that does something similar. The 7210 is out of budget - and I'm not quite sure how it presents its storage - is it NFS/CIFS? The 7000 series devices can present NFS, CIFS and iSCSI. Looks very nice if you need a nice Gui / Don't know command line / need nice analytics. I had a play with one the other day and am hoping to get my mit's on one shortly for testing. I would like to give it a real gd crack with VMWare for VDI VM's. If so, presumably it would be relatively easy to build something equivalent, but without the (awesome) interface. For sure the above gear would be fine for that. If you use standard Solaris 10 10/08 you have NFS and iSCSI ability directly in the OS and also available to be supported via a support contract if needed. Best bet would probably be NFS for the Linux machines, but you would need to test in *their* environment with *their* workload. The interesting alternative is to set up Comstar on SXCE, create zpools and volumes, and make these available either over a fibre infrastructure, or iSCSI. I'm quite excited by this as a solution, but I'm not sure if it's really production ready. If you want fibre channel target then you will need to use OpenSolaris or SXDE I believe. It's not available in mainstream Solaris yet. I am personally waiting till then when it has been *well* tested in the bleeding edge community. I have too much data to take big risks with it. What other options are there, and what advice/experience can you share? I do very similar stuff here with J4500's and T2K's for compliance archives, NFS and iSCSI targets for Windows machines. Works fine for me. Biggest system is 48TB on J4500 for Veritas Netbackup DDT staging volumes. Very good throughput indeed. Perfect in fact, based on the large files that are created in this environment. One of these J4500's can keep 4 LTO4 drives in a SL500 saturated with data on a T5220. (4 streams at ~160 MB/sec) I think you have pretty much the right idea though. Certainly if you use Sun kit you will be able to deliver a commercially supported solution for them. Thanks, S. -- _ Scott Lawson Systems Architect Information Communication Technology Services Manukau Institute of Technology Private Bag 94006 South Auckland Mail Centre Manukau 2240 Auckland New Zealand Phone : +64 09 968 7611 Fax: +64 09 968 7641 Mobile : +64 27 568 7611 mailto:sc...@manukau.ac.nz http://www.manukau.ac.nz __ perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);' __ ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
