Re: [zfs-discuss] deduplication

2009-07-11 Thread James C. McPherson
Anil wrote: When it comes out, how will it work? Does it work at the pool level or a zfs file system level? If I create a zpool called 'zones' and then I create several zones underneath that, could I expect to see a lot of disk space savings if I enable dedup on the pool? Just curious as to wha

Re: [zfs-discuss] deduplication

2009-07-11 Thread Mike Gerdts
On Sat, Jul 11, 2009 at 9:32 PM, Ian Collins wrote: > > Anil wrote: >> >> Does it work at the pool level or a zfs file system level? If I create a >> zpool called 'zones' and then I create several zones underneath that, could >> I expect to see a lot of disk space savings if I enable dedup on th

Re: [zfs-discuss] deduplication

2009-07-11 Thread Ian Collins
Anil wrote: Does it work at the pool level or a zfs file system level? If I create a zpool called 'zones' and then I create several zones underneath that, could I expect to see a lot of disk space savings if I enable dedup on the pool? You can get the same savings by cloning your zones. -

Re: [zfs-discuss] Slow Resilvering Performance

2009-07-11 Thread Galen
On Jul 11, 2009, at 6:10 PM, Miles Nordin wrote: "g" == Galen writes: g> I'm running OpenSolaris 2009.06, and while those are g> interesting to read, none of them really explain or solve my g> issues. read this again: In particular 6333409 in snv_102 is supposed to speed up s

Re: [zfs-discuss] Resilvering Loop

2009-07-11 Thread Galen
On Jul 11, 2009, at 4:00 PM, Ross Walker wrote: On Jul 11, 2009, at 5:41 PM, Galen wrote: On Jul 11, 2009, at 2:24 PM, Andrew Gabriel wrote: Galen wrote: I have a situation where my zpool (with two radiz2s) is resilvering and reaches a certain point, then starts over. There no read, w

[zfs-discuss] deduplication

2009-07-11 Thread Anil
When it comes out, how will it work? Does it work at the pool level or a zfs file system level? If I create a zpool called 'zones' and then I create several zones underneath that, could I expect to see a lot of disk space savings if I enable dedup on the pool? Just curious as to what's coming a

Re: [zfs-discuss] destroying large zvols interrupts pool access

2009-07-11 Thread A Hettinger
Sorry to reply to myself, the most recent host I have seen this on is running snv_115 it's pool is running ZFS pool version 15 -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.o

[zfs-discuss] destroying large zvols interrupts pool access

2009-07-11 Thread A Hettinger
I have a recurrent problem when I destroy pools, in that it disrupts access to the pool for a long period. I am using this for iscsi and FC storage. Due to numerous issues with zvols, I am migrating away from them in favor of file-based backing-stores. I would be willing to run tests to help f

Re: [zfs-discuss] Resilvering Loop

2009-07-11 Thread Ross Walker
On Jul 11, 2009, at 5:41 PM, Galen wrote: On Jul 11, 2009, at 2:24 PM, Andrew Gabriel wrote: Galen wrote: I have a situation where my zpool (with two radiz2s) is resilvering and reaches a certain point, then starts over. There no read, write or checksum errors. The disks do have a fair

Re: [zfs-discuss] Resilvering Loop

2009-07-11 Thread Galen
On Jul 11, 2009, at 2:24 PM, Andrew Gabriel wrote: Galen wrote: I have a situation where my zpool (with two radiz2s) is resilvering and reaches a certain point, then starts over. There no read, write or checksum errors. The disks do have a fair amount of resilvering to do, as I've had a v

Re: [zfs-discuss] Resilvering Loop

2009-07-11 Thread Galen
I've never used snapshotting on this zpool and I can't imagine how it would snapshot without my involvement. -Galen On Jul 11, 2009, at 2:22 PM, Thomas Burgess wrote: do you have auto-snapshots on? i think old versions would restart on every single new snapshot On Sat, Jul 11, 2009 at 5:

Re: [zfs-discuss] Slow Resilvering Performance

2009-07-11 Thread Galen
On Jul 10, 2009, at 3:32 PM, Miles Nordin wrote: "g" == Galen writes: g> the disk being resilvered is 1 to 3 MB/sec. see: 6592835 resilvering is at least 10x too slow 6602697 pool has small write throughput during resilver http://bugs.opensolaris.org/view_bug.do?bug_id=6722540 -- some

Re: [zfs-discuss] Resilvering Loop

2009-07-11 Thread Andrew Gabriel
Galen wrote: I have a situation where my zpool (with two radiz2s) is resilvering and reaches a certain point, then starts over. There no read, write or checksum errors. The disks do have a fair amount of resilvering to do, as I've had a variety of disk failures. But at the core of things, the

[zfs-discuss] Resilvering Loop

2009-07-11 Thread Galen
I have a situation where my zpool (with two radiz2s) is resilvering and reaches a certain point, then starts over. There no read, write or checksum errors. The disks do have a fair amount of resilvering to do, as I've had a variety of disk failures. But at the core of things, there's enough

Re: [zfs-discuss] ZFS tale of woe and fail

2009-07-11 Thread roland
mhh, i think i`m afraid, too, as i also need to use zfs on a single, large lun. -- 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] recover data after zpool create

2009-07-11 Thread Tomas Ă–gren
On 11 July, 2009 - stephen bond sent me these 0,6K bytes: > Carson, > > please provide an example how to read bytes. I talk about cylinder because I > don't know better. > I need to read from a partition which shows as /dev/hda3 under Gparted with > starting sector ending sector z. >

Re: [zfs-discuss] recover data after zpool create

2009-07-11 Thread stephen bond
Carson, please provide an example how to read bytes. I talk about cylinder because I don't know better. I need to read from a partition which shows as /dev/hda3 under Gparted with starting sector ending sector z. under solaris I think it becomes /dev/dsk/c0d0p3 I tried dd if=/dev/ds

[zfs-discuss] zfs rpool boot failed

2009-07-11 Thread iman habibi
Dear Admins I had solaris 10u8 installation based on ZFS (rpool)filesystem on two mirrored scsi disks in sunfire v880. but after some months,when i reboot server with reboot command,it didnt boot from disks,and returns cant boot from boot media. how can i recover some data from my previous installa

Re: [zfs-discuss] Slow Resilvering Performance

2009-07-11 Thread Thomas Burgess
i might be wrong because i'm kind of new but i THINK you need to disable automatic snapshots when resilvering, at least on the older version you did. if not it would restart every time a new snapshot was madebut then again, i may be wrong. On Fri, Jul 10, 2009 at 6:18 PM, Galen wrote: > I