Re: [zfs-discuss] OCZ Vertex 2 Pro performance numbers
Geoff Nordli wrote: Is this the one (http://www.ocztechnology.com/products/solid-state-drives/2-5--sata-ii/maxim um-performance-enterprise-solid-state-drives/ocz-vertex-2-pro-series-sata-ii -2-5--ssd-.html) with the built in supercap? Yes. Geoff ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS on Ubuntu
What supporting applications are there on Ubuntu for RAIDZ? -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS on Ubuntu
On Sat, Jun 26, 2010 at 12:20 AM, Ben Miles merloc...@hotmail.com wrote: What supporting applications are there on Ubuntu for RAIDZ? None. Ubuntu doesn't officially support ZFS. You can kind of make it work using the ZFS-FUSE project. But it's not stable, nor recommended. -- Freddie Cash fjwc...@gmail.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Accessing a zpool from another system
Hello, I have a problem after accessing a zpool containing a boot environment from another system. When the zpool is accessed (imported, mounted and exported again) by another system, the device addresses stored in its metadata are overwritten. Consequently, it is not bootable any more and causes a kernel panic when booted. The only solution is to boot from a live CD and do a zpool import/export in exactly the same hardware environment, so that the correct device addresses are restored again. Can this be avoided? I need the zpool to be both directly bootable and accessible from another (virtual) machine. How can a zpool be imported and mounted without changing the device addresses stored in its metadata? I know those hardware characteristics could be important in RAIDZ scenarios, but this is just one partition... Andrej smime.p7s Description: S/MIME Cryptographic Signature ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Recomendations for Storage Pool Config
Good morning all. This question has probably poped up before, but maybe not in this exact way... I am planning on building a SAN for my home meta centre, and have some of the raid cards I need for the build. I will be ordering the case soon, and then the drives. The cards I have are 2 8 port PXI-Express cards (A dell Perc 5 and a Adaptec card...). The case will have 20 hot swap SAS/SATA drives, and I will be adding a third RAID controller to allow the full 20 drives. I have read something about trying to setup redundancy with the RAID controllers, so having zpools spanning multiple controllers. Given I won't be using the on-board RAID features of the cards, I am wondering how this should be setup... I was thinking of zpools: 2+2+1 X 4 in ZRAID2. This way, I could lose a controller and not lose any data from the pools... But is this theory correct? If I were to use 2Tb drives, each zpool would be 10Tb RAW and 6TB useable... giving me a total of 40Tb RAW and 24Tb usable... Is this over kill? Should I be worrying about losing a controller? Thanks in advance. --Tiernan ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Maximum zfs send/receive throughput
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Thomas Maier-Komor you can probably improve overall performance by using mbuffer [1] to stream the data over the network. At least some people have reported increased performance. mbuffer will buffer the datastream and disconnect zfs send operations from network latencies. Get it there: original source: http://www.maier-komor.de/mbuffer.html binary package: http://www.opencsw.org/packages/CSWmbuffer/ mbuffer is also available in opencsw / blastwave. IMHO, easier and faster and better than building things from source, most of the time. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS on Ubuntu
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Ben Miles What supporting applications are there on Ubuntu for RAIDZ? I see, supporting applications is just confusing English, because your filesystem isn't an application. I think you're just asking How can I do raid on ubuntu. This question might be more appropriate on an ubuntu list instead. But here's a quick answer anyway: You can do zfs-fuse. It's not as good as having ZFS included natively with your OS. Aside from that, there is no raidz available in ubuntu, or any linux. (Well, at least theoretically you could use the Lawrence Livermore National Laboratory linux port of ZFS, http://wiki.github.com/behlendorf/zfs/, which will allow you to create raidz zpool's and then you can format the zvol with ext3/ext4). But this is lacking a lot of functionality of zfs, and extremely new. If you don't need raidz for example, if raid5 is ok ... man pvcreate, man vgcreate, man lvcreate. It's not as good as zfs or raidz, but it does support software raid5. But why would you want to do software raid5 on anything that doesn't have zfs? If you're not using zfs, you should get a hardware raid controller with writeback cache and BBU. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Recomendations for Storage Pool Config
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Tiernan OToole I have read something about trying to setup redundancy with the RAID controllers, so having zpools spanning multiple controllers. Given I won't be using the on-board RAID features of the cards, I am wondering how this should be setup. Option 1: Suppose you have controllers, A, B, C. Suppose you have 8 disks per controller, 0, 1, ..., 7 Configure your controller for JBOD mode (so the OS can see each individual disk) or configure each individual disk as a 1-disk raid0 or raid1, which is essentially the same as JBOD. Point is, the OS needs to see each individual disk. mirror A0 B0 C0 mirror A1 B1 C1 mirror A2 B2 C2 ... You will have the total usable capacity of 8 disks, and 16 disks redundancy. Option 2: raidz A0 B0 C0 raidz A1 B1 C1 raidz A2 B2 C2 ... You will have the total usable capacity of 16 disks, and 8 disks redundancy. Option 3: If you have any less than 8 disks redundancy, you won't be protected against controller failure. It's a calculated risk; a crashed controller would result in the zpool going offline, and probably an OS crash. I don't know the probability of data loss in that scenario, but I know none of this should be a problem if you *do* have the controller redundancy. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] OCZ Vertex 2 Pro performance numbers
On Jun 26, 2010, at 02:09, Arne Jansen wrote: Geoff Nordli wrote: Is this the one (http://www.ocztechnology.com/products/solid-state-drives/2-5--sata-ii/maxim um-performance-enterprise-solid-state-drives/ocz-vertex-2-pro- series-sata-ii -2-5--ssd-.html) with the built in supercap? Yes. Crickey. Who's the genius who thinks of these URLs? ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS on Ubuntu
- Original Message - On Sat, Jun 26, 2010 at 12:20 AM, Ben Miles merloc...@hotmail.com wrote: What supporting applications are there on Ubuntu for RAIDZ? None. Ubuntu doesn't officially support ZFS. You can kind of make it work using the ZFS-FUSE project. But it's not stable, nor recommended. FYI, zfs-fuse is in 10.04 by default Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Recomendations for Storage Pool Config
I am planning on building a SAN for my home meta centre, and have some of the raid cards I need for the build. I will be ordering the case soon, and then the drives. The cards I have are 2 8 port PXI-Express cards (A dell Perc 5 and a Adaptec card…). The case will have 20 hot swap SAS/SATA drives, and I will be adding a third RAID controller to allow the full 20 drives. First, you won't need a RAID controller. Just get something cheap with lots of ports. It'll suffice - ZFS will do the smart stuff. I was thinking of zpools: 2+2+1 X 4 in ZRAID2. This way, I could lose a controller and not lose any data from the pools… But is this theory correct? If I were to use 2Tb drives, each zpool would be 10Tb RAW and 6TB useable… giving me a total of 40Tb RAW and 24Tb usable… I don't see the point of using more than one pool. Just use more VDEVs in the same pool, and redundancy will be just as good as with more pools, and a single pool is far more flexible. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS on Ubuntu
I tried to post this question on the Ubuntu forum. Within 30 minutes my post was on the second page of new posts... Yah. Im really not down with using Ubuntu on my server here. But I may be forced to. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Creating a dataset from a directory?
Hi all I've ran into this thing a few times. A directory is filled up with scientific data, and a subdirectory of that is used as a workspace with hundreds of gigabytes of temporary data. When automatic snapshotting is enabled, this obviously eats disk space. Now, the obvious way to solve this is to never use those areas as workspace areas, and to teach the users to use separate areas for that, but then, the world is not always a nice place. Would it be hard to add a way create a new dataset with an existing directory, separating this directory and subdirectories and files, perhaps also snapshots? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS on Ubuntu
- Original Message - I tried to post this question on the Ubuntu forum. Within 30 minutes my post was on the second page of new posts... Yah. Im really not down with using Ubuntu on my server here. But I may be forced to. As others have suggested, perhaps you should try FreeBSD? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] /bin/cp vs /usr/gnu/bin/pc
Hello, I came across this blog post: http://kevinclosson.wordpress.com/2007/03/15/copying-files-on-solaris-slow-or-fast-its-your-choice/ and would like to hear from you performance gurus how this 2007 article relates to the 2010 ZFS implementation? What should I use and why? Thanks, Oliver -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] /bin/cp vs /usr/gnu/bin/pc
Hello, I came across this blog post: http://kevinclosson.wordpress.com/2007/03/15/copying-files-on-solaris-slow-or-fast-its-your-choice/ and would like to hear from you performance gurus how this 2007 article relates to the 2010 ZFS implementation? What should I use and why? [ WARNING : red herring non-sequiter follows ] My PATH looks like so : $ echo $PATH /opt/SUNWspro/bin:/usr/xpg6/bin:/usr/xpg4/bin:/usr/ccs/bin:/usr/bin:/usr/sbin:/bin:/sbin Thus I have no such issues with the GNU vs OpenGroup/POSIX compliance tools. Dennis ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] /bin/cp vs /usr/gnu/bin/pc
Try in /usr/bin/ksh93:
builtin cp
and benchmark that.
Olga
On Sat, Jun 26, 2010 at 5:18 PM, Oliver Seidel opensola...@os1.net wrote:
Hello,
I came across this blog post:
http://kevinclosson.wordpress.com/2007/03/15/copying-files-on-solaris-slow-or-fast-its-your-choice/
and would like to hear from you performance gurus how this 2007 article
relates to the 2010 ZFS implementation? What should I use and why?
Thanks,
Oliver
--
This message posted from opensolaris.org
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Re: [zfs-discuss] Trouble detecting Seagate LP 2TB drives
For those wanting more details, it's in a flag day from 2009/9/11: http://hub.opensolaris.org/bin/view/Community+Group+on/2008091102 FreeNAS worked fine with the system and drives, which made for a nice fallback plan. -B -- Brandon High : bh...@freaks.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Detaching a clone from a snapshot
On Fri, Jun 25, 2010 at 10:28 PM, Andrej Podzimek and...@podzimek.org wrote: I can't get rid of S (and of the error message in zpool status) without removing either C1 or C2. Is there a solution other than removing C1 or C2? You can use send|recv to create a new copy of one or both of the clones. This should remove any dependancy on the original snaopshot. -B -- Brandon High : bh...@freaks.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
