[zfs-discuss] zpool lists 2 controllers the same, how do I replace one?

Hello. zpool lists my pool as having 2 disks which have identical names. One is offline, the other is online. How do I tell zpool to replace the offline one? I want to replace the offline c5t5d0 with c5t2d0 but when I run the command: pfexec zpool replace -f space c5t5d0 c5t2d0 I get the erro

Re: [zfs-discuss] SSD best practices

On Apr 17, 2010, at 11:51 AM, Edward Ned Harvey wrote: >> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- >> boun...@opensolaris.org] On Behalf Of Dave Vrona >> >> 1) Mirroring. Leaving cost out of it, should ZIL and/or L2ARC SSDs be >> mirrored ? > > IMHO, the best answer to thi

Re: [zfs-discuss] recomend sata controller 4 Home server with zfs raidz2 and 8x1tb hd

On Sat, Apr 17, 2010 at 21:48, Erik Trimble wrote: > Since we're talking about an old PCI slot here, I'd say there's really two > good options: > > A SiliconImage Sil3114-based card, which is a 32-bit/66Mhz card, with 4 > SATA-1 ports, usually for $25 > > A Supermicro AOC-SAT2-MV8 card, which is

Re: [zfs-discuss] zfs snapshots and rsync

Bob Friesenhahn wrote: On Sat, 17 Apr 2010, G. Ander wrote: According to how rsync works, the actual sent data should be much less than the size of the file(s), however, I noticed that the used space of the dataset+snapshot was the combined size of the older and newer file. The increase of

Re: [zfs-discuss] recomend sata controller 4 Home server with zfs raidz2 and 8x1tb hd

Since we're talking about an old PCI slot here, I'd say there's really two good options: A SiliconImage Sil3114-based card, which is a 32-bit/66Mhz card, with 4 SATA-1 ports, usually for $25 A Supermicro AOC-SAT2-MV8 card, which is a 64-bit/100Mhz PCI-X card (but will fit and run just fine i

Re: [zfs-discuss] SSD best practices

On 18 apr 2010, at 00.52, Dave Vrona wrote: > Ok, so originally I presented the X-25E as a "reasonable" approach. After > reading the follow-ups, I'm second guessing my statement. > > Any decent alternatives at a reasonable price? How much is reasonable? :-) I guess there are STEC drives that

Re: [zfs-discuss] zfs snapshots and rsync

On Sat, 17 Apr 2010, G. Ander wrote: According to how rsync works, the actual sent data should be much less than the size of the file(s), however, I noticed that the used space of the dataset+snapshot was the combined size of the older and newer file. The increase of space consumed is becau

[zfs-discuss] zfs snapshots and rsync

Hi, I've got a large file - 20gigs - which is stored in a zfs dataset. I snapshotted the dataset and rsynced an newer, updated version of the same file - slightly larger, but with mostly unchanged data. According to how rsync works, the actual sent data should be much less than the size of the

Re: [zfs-discuss] Setting up ZFS on AHCI disks

I solved the mystery - an astounding 7 out of the 10 brand new disks I was using were bad. I was using 4 at a time, and it wasn't until a good one got in the mix that I realized what was wrong. FYI, these were Western Digital WD15EADS and Samsung HD154UI. Each brand was mostly bad, with one or t

Re: [zfs-discuss] SSD best practices

Ok, so originally I presented the X-25E as a "reasonable" approach. After reading the follow-ups, I'm second guessing my statement. Any decent alternatives at a reasonable price? -- This message posted from opensolaris.org ___ zfs-discuss mailing list

Re: [zfs-discuss] SSD best practices

> > From: zfs-discuss-boun...@opensolaris.org > [mailto:zfs-discuss- > > boun...@opensolaris.org] On Behalf Of Edward Ned > Harvey > > > > > From: zfs-discuss-boun...@opensolaris.org > [mailto:zfs-discuss- > > > boun...@opensolaris.org] On Behalf Of Dave Vrona > > > > > > > > 2) ZIL write cache.

Re: [zfs-discuss] recomend sata controller 4 Home server with zfs raidz2 and 8x1tb hd

On Sat, Apr 17, 2010 at 05:36:19PM -0400, Ethan wrote: > >From wikipedia, PCI is > 133 MB /s (32-bit at 33 MHz) > 266 MB/s (32-bit at 66 MHz or 64-bit at 33 MHz) > 533 MB/s (64-bit at 66 MHz) > > Not quite the 3GB/s hoped for. Not quite, but somewhat closer

Re: [zfs-discuss] SSD best practices

On 17 apr 2010, at 20.51, Edward Ned Harvey wrote: >> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- >> boun...@opensolaris.org] On Behalf Of Dave Vrona >> >> 1) Mirroring. Leaving cost out of it, should ZIL and/or L2ARC SSDs be >> mirrored ? ... > Personally, I recommend the la

Re: [zfs-discuss] recomend sata controller 4 Home server with zfs raidz2 and 8x1tb hd

On Sat, Apr 17, 2010 at 15:19, Tim Cook wrote: > > > On Sat, Apr 17, 2010 at 2:12 PM, Harry Putnam wrote: > >> Tim Cook writes: >> >> > On Fri, Apr 16, 2010 at 7:35 PM, Harry Putnam >> wrote: >> > >> >> "Eric D. Mudama" writes: >> >> >> >> > On Thu, Apr 15 at 23:57, Günther wrote: >> >> >>hel

Re: [zfs-discuss] Making ZFS better: rm files/directories from snapshots

On 04/18/10 01:25 AM, Edward Ned Harvey wrote: From: Ian Collins [mailto:i...@ianshome.com] But is a fundamental of zfs: snapshot A read-only version of a file system or volume at a given point in time. It is specified as filesys...@name or vol...@

Re: [zfs-discuss] recomend sata controller 4 Home server with zfs raidz2 and 8x1tb hd

On Sat, Apr 17, 2010 at 2:12 PM, Harry Putnam wrote: > Tim Cook writes: > > > On Fri, Apr 16, 2010 at 7:35 PM, Harry Putnam > wrote: > > > >> "Eric D. Mudama" writes: > >> > >> > On Thu, Apr 15 at 23:57, Günther wrote: > >> >>hello > >> >> > >> >>if you are looking for pci-e (8x), i would reco

Re: [zfs-discuss] recomend sata controller 4 Home server with zfs raidz2 and 8x1tb hd

Tim Cook writes: > On Fri, Apr 16, 2010 at 7:35 PM, Harry Putnam wrote: > >> "Eric D. Mudama" writes: >> >> > On Thu, Apr 15 at 23:57, Günther wrote: >> >>hello >> >> >> >>if you are looking for pci-e (8x), i would recommend sas/sata controller >> >>with lsi 1068E sas chip. they are nearly per

Re: [zfs-discuss] SSD best practices

> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Edward Ned Harvey > > > From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > > boun...@opensolaris.org] On Behalf Of Dave Vrona > > > > > 2) ZIL write cache. It appears some have

Re: [zfs-discuss] SSD best practices

> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Dave Vrona > > 1) Mirroring. Leaving cost out of it, should ZIL and/or L2ARC SSDs be > mirrored ? IMHO, the best answer to this question is the one from the ZFS Best Practices guide. (I wrot

Re: [zfs-discuss] SSD best practices

On 04/17/10 07:59, Dave Vrona wrote: 1) Mirroring. Leaving cost out of it, should ZIL and/or L2ARC SSDs be mirrored ? L2ARC cannot be mirrored -- and doesn't need to be. The contents are checksummed; if the checksum doesn't match, it's treated as a cache miss and the block is re-read from the

Re: [zfs-discuss] SSD best practices

On Sat, 17 Apr 2010, Dave Vrona wrote: 1) Mirroring. Leaving cost out of it, should ZIL and/or L2ARC SSDs be mirrored ? Mirroring the intent log is a good idea, particularly for ZFS versions which don't support removing the intent log device. 2) ZIL write cache. It appears some have disa

[zfs-discuss] SSD best practices

Hi all, I'm planning a new build based on a SuperMicro chassis with 16 bays. I am looking to use up to 4 of the bays for SSD devices. After reading many posts about SSDs I believe I have a _basic_ understanding of a reasonable approach to utilizing SSDs for ZIL and L2ARC. Namely: ZIL: Intel

Re: [zfs-discuss] Making ZFS better: file/directory granularity in-place rollback

Edward Ned Harvey wrote: From: Erik Trimble [mailto:erik.trim...@oracle.com] So the suggestion, or question is: Is it possible or planned to implement a rollback command, that works as fast as a link or re-link operation, implemented at a file or directory level, instead of

Re: [zfs-discuss] Making ZFS better: rm files/directories from snapshots

> From: Ian Collins [mailto:i...@ianshome.com] > > But is a fundamental of zfs: > > snapshot > > A read-only version of a file system or volume at a > given point in time. It is specified as filesys...@name > or vol...@name. Erik Trimble's assessment tha

Re: [zfs-discuss] Making ZFS better: file/directory granularity in-place rollback

> From: Erik Trimble [mailto:erik.trim...@oracle.com] > > > So the suggestion, or question is: Is it possible or planned to > implement a > > rollback command, that works as fast as a link or re-link operation, > > implemented at a file or directory level, instead of the entire > filesystem? > >

Re: [zfs-discuss] Making ZFS better: zfshistory

> From: Richard Elling [mailto:richard.ell...@gmail.com] > > > > Um ... All the same time. > > Even if I "stat" those directories ... > > Access: Modify: and Change: are all useless... > > which is why you need to stat the destination :-) Ahh. I see it now. By stat'ing the destination instead

Re: [zfs-discuss] raidz2 drive failure zpool will not import

Thanks Richard, I tried removing the replacement drive and received the same error. Output of zdb -l /dev/rdsk/c5d1s0 results in: ke...@opensolaris:~# zdb -l /dev/rdsk/c5d1s0 cannot open '/dev/rdsk/c5d1s0': No such device or address All other drives have 4 readable labels 0-3 I even attempted the o

Re: [zfs-discuss] crypted zvol bandwith => lofidevice=`pfexec lofiadm -a /dev/zvol/rdsk/$volumepath -c aes-256-cbc`

Hello Darren, Thanks for your answer! I have try without encryption and seems the same. My mean is about bandwidth. what I see is that if I write xMb/s to zfs fs then zfs write nearly xMb/s to the pool and that's attended. This pool write nearly xMb/s to lofi and that's attended. iostat lofi see