Re[2]: [zfs-discuss] Setting up for zfsboot

2007-04-05 Thread Robert Milkowski
Hello Matthew, Thursday, April 5, 2007, 1:08:25 AM, you wrote: MA Lori Alt wrote: Can write-cache not be turned on manually as the user is sure that it is only ZFS that is using the entire disk? yes it can be turned on. But I don't know if ZFS would then know about it. I'd still feel

Re[2]: [zfs-discuss] Setting up for zfsboot

2007-04-05 Thread Robert Milkowski
Hello Adam, Wednesday, April 4, 2007, 11:41:58 PM, you wrote: AL On Wed, Apr 04, 2007 at 11:04:06PM +0200, Robert Milkowski wrote: If I stop all activity to x4500 with a pool made of several raidz2 and then I issue spare attach I get really poor performance (1-2MB/s) on a pool with lot of

Re: [zfs-discuss] Setting up for zfsboot

2007-04-05 Thread Constantin Gonzalez
Hi, - RAID-Z is _very_ slow when one disk is broken. Do you have data on this? The reconstruction should be relatively cheap especially when compared with the initial disk access. Also, what is your definition of broken? Does this mean the device appears as FAULTED in the pool status, or

Re[2]: [zfs-discuss] Re: ZFS boot: a new heads-up

2007-04-05 Thread Robert Milkowski
Hello James, Thursday, April 5, 2007, 7:19:41 AM, you wrote: JCM Ivan Wang wrote: So any date on when install utility will support zfs root fresh install? almost can't wait for that. JCM Hi Ivan, JCM there's no firm date for this yet, though the install team are JCM working *really* hard at

Re: Re[2]: [zfs-discuss] Setting up for zfsboot

2007-04-05 Thread Roch Bourbonnais
Le 5 avr. 07 à 08:28, Robert Milkowski a écrit : Hello Matthew, Thursday, April 5, 2007, 1:08:25 AM, you wrote: MA Lori Alt wrote: Can write-cache not be turned on manually as the user is sure that it is only ZFS that is using the entire disk? yes it can be turned on. But I don't know

Re: [zfs-discuss] Setting up for zfsboot

2007-04-05 Thread Roch Bourbonnais
Now, given proper I/O concurrency (like recently improved NCQ in our drivers) or SCSI CTQ, I don't not expect the write caches to provide much performance gains, if any, over the situation with write caches off. Write caches can be extremelly effective when dealing with drives that do not

Re: [zfs-discuss] Setting up for zfsboot

2007-04-05 Thread Roch Bourbonnais
Le 4 avr. 07 à 10:01, Paul Boven a écrit : Hi everyone, Swap would probably have to go on a zvol - would that be best placed on the n-way mirror, or on the raidz? From the book of Richard Elling, Shouldn't matter. The 'existence' of a swap device is sometimes required. If the

[zfs-discuss] Re: Excessive checksum errors...

2007-04-05 Thread Chris Csanady
I have some further data now, and I don't think that it is a hardware problem. Half way through the scrub, I rebooted and exchanged the controller and cable used with the bad disk. After restarting the scrub, it proceeded error free until about the point where it left off, and then it resumed

Re: [zfs-discuss] Gzip compression for ZFS

2007-04-05 Thread Erblichs
My two cents, Assuming that you may pick a specific compression algorithm, most algorithms can have different levels/percentages of deflations/inflations which is effects the time to compress and/or inflate wrt the CPU capacity. Secondly, if I can add an

[zfs-discuss] Something like spare sectors...

2007-04-05 Thread Pawel Jakub Dawidek
Hi. What do you think about adding functionality similar to disk's spare sectors - if a sector die, a new one is assigned from the spare sectors pool. This will be very helpful especially for laptops, where you have only one disk. I simulated returning EIO for one sector from a one-disk pool and

[zfs-discuss] Re: Re: zfs destroy snapshot takes hours

2007-04-05 Thread Miroslav Pendev
After some discussions with Matt I removed all the previous snapshots before the one causing the memory issues. Guess what - it worked. I was able to remove that snapshot after I removed all previous ones. It took 2 seconds. I will definitely have to upgrade that machine these days to 64 bit

Re: [zfs-discuss] Something like spare sectors...

2007-04-05 Thread Robert Milkowski
Hello Pawel, Thursday, April 5, 2007, 3:10:11 PM, you wrote: PJD Hi. PJD What do you think about adding functionality similar to disk's spare PJD sectors - if a sector die, a new one is assigned from the spare sectors PJD pool. This will be very helpful especially for laptops, where you have

Re: [zfs-discuss] Something like spare sectors...

2007-04-05 Thread Eric Schrock
This sounds a lot like: 6417779 ZFS: I/O failure (write on ...) -- need to reallocate writes Which would allow us to retry write failures on alternate vdevs. - Eric On Thu, Apr 05, 2007 at 03:10:11PM +0200, Pawel Jakub Dawidek wrote: Hi. What do you think about adding functionality similar

[zfs-discuss] opensolaris, zfs rootfs raidz

2007-04-05 Thread Jakob Praher
hi all, I am new to solaris. I am creating a zfs filestore which should boot via rootfs. The version of the system is: SunOS store1 5.10 Generic_118855-33 i86pc i386 i86pc. Now I have seen that there is a new rootfs support for solaris starting with build: snv_62.

Re: [zfs-discuss] opensolaris, zfs rootfs raidz

2007-04-05 Thread Cyril Plisko
On 4/5/07, Jakob Praher [EMAIL PROTECTED] wrote: hi all, Hi Jacob, I am new to solaris. I am creating a zfs filestore which should boot via rootfs. The version of the system is: SunOS store1 5.10 Generic_118855-33 i86pc i386 i86pc. Now I have seen that there is a new rootfs support for

[zfs-discuss] Re: Re: today panic ...

2007-04-05 Thread Gino
Is there anyone interested in a kernel dump? We are sill unable to import the corrupted zpool, even in readonly mode .. Apr 5 22:27:34 SERVER142 ^Mpanic[cpu2]/thread=fffec9eef0e0: Apr 5 22:27:34 SERVER142 genunix: [ID 603766 kern.notice] assertion failed: ss-ss_start = start (0x67b800

[zfs-discuss] Re: opensolaris, zfs rootfs raidz

2007-04-05 Thread Jakob Praher
Hi Cyril, thanks for your quick response! Cyril Plisko wrote: On 4/5/07, Jakob Praher [EMAIL PROTECTED] wrote: hi all, I am new to solaris. I am creating a zfs filestore which should boot via rootfs. The version of the system is: SunOS store1 5.10 Generic_118855-33 i86pc i386 i86pc.

Re: [zfs-discuss] Re: opensolaris, zfs rootfs raidz

2007-04-05 Thread Darren Dunham
a) possible to start from a raidz pool? No. At this point raidz pool is not usable as a boot pool. Is this possible then to use a mirror pool? Yes (to some extent). You can use one disk/slice or a mirror. 2. Prepare the disk for a ZFS rootpool. A rootpool can be a single disk

Re: [zfs-discuss] Re: opensolaris, zfs rootfs raidz

2007-04-05 Thread Malachi de Ælfweald
But even with b62, you won't be able to start with the zfs mirror right? You'll have to do UFS then convert it? Malachi On 4/5/07, Darren Dunham [EMAIL PROTECTED] wrote: a) possible to start from a raidz pool? No. At this point raidz pool is not usable as a boot pool. Is this possible

[zfs-discuss] Re: opensolaris, zfs rootfs raidz

2007-04-05 Thread Erik Trimble
On Thu, 2007-04-05 at 14:27 -0700, Malachi de Ælfweald wrote: But even with b62, you won't be able to start with the zfs mirror right? You'll have to do UFS then convert it? Malachi Correct. The direct support for installing on ZFS as root will come with the fixing of the Install binary,

Re: [zfs-discuss] Re: opensolaris, zfs rootfs raidz

2007-04-05 Thread Shawn Walker
On 05/04/07, Jakob Praher [EMAIL PROTECTED] wrote: Hi Cyril, thanks for your quick response! Cyril Plisko wrote: On 4/5/07, Jakob Praher [EMAIL PROTECTED] wrote: hi all, I am new to solaris. I am creating a zfs filestore which should boot via rootfs. The version of the system is: SunOS

Re: [zfs-discuss] Re: opensolaris, zfs rootfs raidz

2007-04-05 Thread Erik Trimble
On Thu, 2007-04-05 at 22:59 +0200, Jakob Praher wrote: Hi Cyril, thanks for your quick response! Cyril Plisko wrote: On 4/5/07, Jakob Praher [EMAIL PROTECTED] wrote: hi all, I am new to solaris. I am creating a zfs filestore which should boot via rootfs. The version of the

[zfs-discuss] Re: Gzip compression for ZFS

2007-04-05 Thread Anton B. Rang
Assuming that you may pick a specific compression algorithm, most algorithms can have different levels/percentages of deflations/inflations which affects the time to compress and/or inflate wrt the CPU capacity. Yes? I'm not sure what your point is. Are you suggesting that, rather than

[zfs-discuss] ZFS committed to the FreeBSD base.

2007-04-05 Thread Pawel Jakub Dawidek
Hi. I'm happy to inform that the ZFS file system is now part of the FreeBSD operating system. ZFS is available in the HEAD branch and will be available in FreeBSD 7.0-RELEASE as an experimental feature. Commit log: Please welcome ZFS - The last word in file systems. ZFS file system was

Re: [zfs-discuss] ZFS committed to the FreeBSD base.

2007-04-05 Thread Shawn Walker
On 05/04/07, Pawel Jakub Dawidek [EMAIL PROTECTED] wrote: I'm happy to inform that the ZFS file system is now part of the FreeBSD operating system. ZFS is available in the HEAD branch and will be available in FreeBSD 7.0-RELEASE as an experimental feature. Wow! This is great news Pawel, and

Re: [zfs-discuss] Re: ZFS checksum error detection

2007-04-05 Thread Ricardo Correia
Isn't it more likely that these are errors on data as well? I think zfs retries read operations when there's a checksum failure, so maybe these are transient hardware problems (faulty cables, high temperature..)? This would explain the non-existence of unrecoverable errors. Robert Milkowski

Re: [zfs-discuss] ZFS committed to the FreeBSD base.

2007-04-05 Thread Ricardo Correia
Hi Pawel, Pawel Jakub Dawidek wrote: Other than that, ZFS should be fully-functional. Congratulations, nice work! :) I'm interested in the cross-platform portability of ZFS pools, so I have one question: did you implement the Solaris ZFS whole-disk support (specifically, the creation and

Re: [zfs-discuss] ZFS committed to the FreeBSD base.

2007-04-05 Thread Rich Teer
I'm happy to inform that the ZFS file system is now part of the FreeBSD operating system. ZFS is available in the HEAD branch and will be available in FreeBSD 7.0-RELEASE as an experimental feature. This is fantastic news! At the risk of raking over ye olde arguments, as the old saying goes:

Re: [zfs-discuss] ZFS committed to the FreeBSD base.

2007-04-05 Thread Richard Elling
Pawel Jakub Dawidek wrote: Hi. I'm happy to inform that the ZFS file system is now part of the FreeBSD operating system. ZFS is available in the HEAD branch and will be available in FreeBSD 7.0-RELEASE as an experimental feature. Well done, team! Everyone who cares about their data will be