Re: [zfs-discuss] OpenSolaris ZFS NAS Setup
If it's of interest, I've written up some articles on my experiences of building a ZFS NAS box which you can read here: http://breden.org.uk/2008/03/02/a-home-fileserver-using-zfs/ I used CIFS to share the filesystems, but it will be a simple matter to use NFS instead: issue the command 'zfs set sharenfs=on pool/filesystem' instead of 'zfs set sharesmb=on pool/filesystem'. Hope it helps. Simon Originally posted to answer someone's request for info in storage:discuss 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] Per filesystem scrub
kristof wrote: I would be very happy having a filesystem based zfs scrub We have a 18TB big zpool, it takes more then 2 days to do the scrub. Since we cannot take snapshots during the scrub, this is unacceptable We have recently discovered the same issue on one of our internal build machines. We have a daily bringover of the Teamware onnv-gate that is snapshoted when it completes and as such we can never run a full scrub. Given some of our storage is reaching (or past) EOSL I really want to be able to scrub the important datasets (ie all those other than the clones of onnv). -- Darren J Moffat ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS problem with oracle
I implement ZFS with Oracle but it slower than UFS very much. Do you have any solution? Can I fix this problem with ZFS direct I/O. If it can, how to set it? Wiwat ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Per filesystem scrub
On Mar 31, 2008, at 10:41 AM, kristof wrote: I would be very happy having a filesystem based zfs scrub We have a 18TB big zpool, it takes more then 2 days to do the scrub. Since we cannot take snapshots during the scrub, this is unacceptable While per-dataset scrubbing would certainly be a coarse-grained solution to your problem, work is underway to address the problematic interaction between scrubs and snapshots. Adam -- Adam Leventhal, Fishworkshttp://blogs.sun.com/ahl ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS problem with oracle
Wiwat, You should make sure that you have read the Best Practices Guide and the Evil Tuning Guide for helpful information on optimizing ZFS for Oracle. There are some things you can do to tweak ZFS to get better performance like using a separate filesystem for logs and separating the ZFS intent log (ZIL) from the main pool. They can be found here: http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide Also, what kind of disk subsystem (number of disks, is it an array?, etc.) and how do you have your zfs pools configured (raid type, separate ZIL, etc.)? Hope this gives you a start. -Ed Wiwat Kiatdechawit wrote: I implement ZFS with Oracle but it slower than UFS very much. Do you have any solution? Can I fix this problem with ZFS direct I/O. If it can, how to set it? Wiwat ___ 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] Per filesystem scrub
[EMAIL PROTECTED] wrote on 04/01/2008 04:25:39 AM: kristof wrote: I would be very happy having a filesystem based zfs scrub We have a 18TB big zpool, it takes more then 2 days to do the scrub. Since we cannot take snapshots during the scrub, this is unacceptable We have recently discovered the same issue on one of our internal build machines. We have a daily bringover of the Teamware onnv-gate that is snapshoted when it completes and as such we can never run a full scrub. Given some of our storage is reaching (or past) EOSL I really want to be able to scrub the important datasets (ie all those other than the clones of onnv). -- Darren J Moffat Aye, or better yet -- give the scrub/resilver/snap reset issue fix very high priority. As it stands snapshots are impossible when you need to resilver and scrub (even on supposedly sun supported thumper configs). -Wade Stuart ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Per filesystem scrub
We have recently discovered the same issue on one of our internal build machines. We have a daily bringover of the Teamware onnv-gate that is snapshoted when it completes and as such we can never run a full scrub. Given some of our storage is reaching (or past) EOSL I really want to be able to scrub the important datasets (ie all those other than the clones of onnv). Aye, or better yet -- give the scrub/resilver/snap reset issue fix very high priority. As it stands snapshots are impossible when you need to resilver and scrub (even on supposedly sun supported thumper configs). Since the scrub walks down the metadata tree and that filesystem definitions are somewhere on top of that tree, it shouldn't be too hard to make the scrub start from that point instead of the uberblock, or not? -mg ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Problem importing pool from BSD 7.0 into Nexenta
On Mon, Mar 31, 2008 at 8:35 AM, Bob Friesenhahn [EMAIL PROTECTED] wrote: On Mon, 31 Mar 2008, Tim wrote: Perhaps someone else can correct me if I'm wrong, but if you're using the whole disk, ZFS shouldn't be displaying a slice when listing your disks, should it? I've *NEVER* seen it do that on any of mine except when using partials/slicese. I would expect: c1d1s8 To be: c1d1 Yes, this seems suspicious. It is also suspicious that some devices use 'p' (partition?) while others use 's' (slice?). I agree that its really weird that its trying to look at partitions and slices, when BSD has no problem recognizing the whole disks. Is there any way to override where zfs import is looking, or am I going to have to recreate the pool from scratch? ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Unable to run scrub on degraded zpool
Hi, I've got a 10-disk raidz2 zpool with a dead drive (it's actually been physically removed from the server pending replacement). This is how it looks: # zpool status space pool: space state: DEGRADED status: One or more devices could not be used because the label is missing or invalid. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Replace the device using 'zpool replace'. see: http://www.sun.com/msg/ZFS-8000-4J scrub: resilver completed after 0h0m with 0 errors on Tue Apr 1 15:08:29 2008 config: NAME STATE READ WRITE CKSUM space DEGRADED 0 0 0 raidz2 DEGRADED 0 0 0 c2t2d0ONLINE 0 0 0 c2t3d0ONLINE 0 0 0 c0t0d0ONLINE 0 0 0 c0t1d0ONLINE 0 0 0 c0t2d0ONLINE 0 0 0 17557252296421049869 FAULTED 0 0 0 was /dev/dsk/c2t3d0s0 c0t4d0ONLINE 0 0 0 c0t5d0ONLINE 0 0 0 c0t6d0ONLINE 0 0 0 c0t7d0ONLINE 0 0 0 errors: No known data errors When I try and run a scrub it seems that a resilver is run instead of a scrub, and the resilver finishes almost immediately (as you can see from the scrub: line above. Is this normal behaviour? Or is something somewhat crook with my zpool? What's going on with that long disk name (formerly c2t3d0s0) ? When I replace the failed disk (in the same port) will it be added to the array automatically, or will I have to add it manually (zpool replace) ? Thanks, R. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] How to unmount when devices write-disabled?
In a recovery situation where the primary node crashed, the disks get write-disabled while the failover node takes control. How can you unmount the zpool? It panics the system and actually gets into a panic loop when it tries to mount it again on next boot. Thanks, Brian ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS Device fail timeout?
I'm running ZFS in a test-server against a bunch of drives in an Apple XRaid (configured in the JBOD mode). It works pretty well, except that when I yank one of the drives, ZFS hangs -- presumably, it's waiting for a response from the the XRAID. Is there any way to set the device-failure timeout with ZFS? Thanks, -Luke ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] What to do about retryable write errors?
I've got a newly created zpool where I know (from the previous UFS) that one of the disks has retryable write errors. What should I do about it now? Just leave zfs to deal with it? Repair it? If I should repair, if this procedure ok? zpool offline z2 c5t4d0 format -d c5t4d0 repair ... zpool online z2 c5t4d0 cheers, /Martin 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] What to do about retryable write errors?
Martin Englund wrote: I've got a newly created zpool where I know (from the previous UFS) that one of the disks has retryable write errors. What should I do about it now? Just leave zfs to deal with it? Repair it? Retryable write errors are not fatal, they are retried. What do you think you can do to repair them? I'd raise an eyebrow, but otherwise not worry unless there are fatal errors. -- richard If I should repair, if this procedure ok? zpool offline z2 c5t4d0 format -d c5t4d0 repair ... zpool online z2 c5t4d0 cheers, /Martin This message posted from opensolaris.org ___ 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 Device fail timeout?
Richard Elling wrote: In general, ZFS doesn't manage device timeouts. The lower layer drivers do. The timeout management depends on which OS, OS version, and HBA you use. A fairly extreme example may be Solaris using parallel SCSI and the sd driver, which uses a default timeout of 60 seconds and 5 retries. In the more recent Solaris NV builds, FMA has been enhanced with an io-retire module which can make better decisions on whether the device is behaving well. What, ZFS isn't the whole kernel? ;-) I can Google/RTFM from here. Thanks! -Luke ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
