Re: [zfs-discuss] Whoops, accidentally created a new slog instead of mirroring
Ray, Log removal integrated into build 125, so yes, if you upgraded to at least OpenSolaris build 125 you could fix this problem. See the syntax below on my b133 system. In this particular case, importing the pool from b125 or later media and attempting to remove the log device could not fix this problem unless you also upgraded the pool version, because it is the pool version that provides support for this operation. I hope someone else has a better idea... Thanks, Cindy # zpool create tank mirror c2t10d0 c2t9d0 log c2t8d0 c2t7d0 # zpool status tank pool: tank state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 c2t10d0 ONLINE 0 0 0 c2t9d0 ONLINE 0 0 0 logs c2t8d0 ONLINE 0 0 0 c2t7d0 ONLINE 0 0 0 errors: No known data errors # zpool remove tank c2t8d0 # zpool remove tank c2t7d0 # zpool status tank pool: tank state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 c2t10d0 ONLINE 0 0 0 c2t9d0 ONLINE 0 0 0 errors: No known data errors On 02/25/10 11:42, Ray Van Dolson wrote: Well, it doesn't seem like this is possible -- I was hoping there was some hacky way to do it via zdb or something. Sun support pointed me to a document[1] that leads me to believe this might have worked on OpenSolaris. Anyone out there in Sun-land care to comment? To recap, I accidentally created two zeparate slog/zil devices in my zpool instead of a mirror. I want to remove one of them. I wonder if this will be possible in Solaris 10 U9? I'm considering migrating all my data off and rebuilding the zpool, but might wait for U9 if I can remove zil devices then. Thanks, Ray [1] http://docs.sun.com/app/docs/doc/817-2271/gayrd?a=view ___ 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] Whoops, accidentally created a new slog instead of mirroring
Well, it doesn't seem like this is possible -- I was hoping there was some hacky way to do it via zdb or something. Sun support pointed me to a document[1] that leads me to believe this might have worked on OpenSolaris. Anyone out there in Sun-land care to comment? To recap, I accidentally created two zeparate slog/zil devices in my zpool instead of a mirror. I want to remove one of them. I wonder if this will be possible in Solaris 10 U9? I'm considering migrating all my data off and rebuilding the zpool, but might wait for U9 if I can remove zil devices then. Thanks, Ray [1] http://docs.sun.com/app/docs/doc/817-2271/gayrd?a=view ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Whoops, accidentally created a new slog instead of mirroring
On Thu, Feb 25, 2010 at 11:55:35AM -0800, Cindy Swearingen wrote: Ray, Log removal integrated into build 125, so yes, if you upgraded to at least OpenSolaris build 125 you could fix this problem. See the syntax below on my b133 system. In this particular case, importing the pool from b125 or later media and attempting to remove the log device could not fix this problem unless you also upgraded the pool version, because it is the pool version that provides support for this operation. I hope someone else has a better idea... Thanks Cindy. I need to stay on Solaris 10 for the time being, so I'm guessing I'd have to Live boot into an OpenSolaris build, fix my pool then hope it re-imports into Solaris 10 (I would imagine it wouldn't though). Might be a little too adventurous for my tastes right now... :) I'd really like to know if the ZFS changes from b125 will be merged into Solaris 10 either pre-U9 or for U9... I'm debating just waiting to fix this until then. Ray Thanks, Cindy # zpool create tank mirror c2t10d0 c2t9d0 log c2t8d0 c2t7d0 # zpool status tank pool: tank state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 c2t10d0 ONLINE 0 0 0 c2t9d0 ONLINE 0 0 0 logs c2t8d0 ONLINE 0 0 0 c2t7d0 ONLINE 0 0 0 errors: No known data errors # zpool remove tank c2t8d0 # zpool remove tank c2t7d0 # zpool status tank pool: tank state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 c2t10d0 ONLINE 0 0 0 c2t9d0 ONLINE 0 0 0 errors: No known data errors On 02/25/10 11:42, Ray Van Dolson wrote: Well, it doesn't seem like this is possible -- I was hoping there was some hacky way to do it via zdb or something. Sun support pointed me to a document[1] that leads me to believe this might have worked on OpenSolaris. Anyone out there in Sun-land care to comment? To recap, I accidentally created two zeparate slog/zil devices in my zpool instead of a mirror. I want to remove one of them. I wonder if this will be possible in Solaris 10 U9? I'm considering migrating all my data off and rebuilding the zpool, but might wait for U9 if I can remove zil devices then. Thanks, Ray ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Whoops, accidentally created a new slog instead of mirroring
+-- | On 2010-02-25 12:05:03, Ray Van Dolson wrote: | | Thanks Cindy. I need to stay on Solaris 10 for the time being, so I'm | guessing I'd have to Live boot into an OpenSolaris build, fix my pool | then hope it re-imports into Solaris 10 (I would imagine it wouldn't | though). Might be a little too adventurous for my tastes right now... | :) | | I'd really like to know if the ZFS changes from b125 will be merged | into Solaris 10 either pre-U9 or for U9... | | I'm debating just waiting to fix this until then. http://sparcv9.blogspot.com/2010/01/first-hints-on-solaris-10-update-9.html Seems at least possible. -- bda cyberpunk is dead. long live cyberpunk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Whoops, accidentally created a new slog instead of mirroring
Had a two-device SSD (mirrored) slog/zil and needed to pull each disk to read some numbers off of them. Unfortunately, when I placed the devices back in the system, I used zpool add and created a separate log device instead of reattaching the device to the existing log device which would have resulted in a mirror. Fortunately, there are two other SSD's in the system acting as L2ARC which I was able to borrow from and set up temp mirrors so I could pull out the other drive, but, in the end I'm left with: logs c0t29d0ONLINE 0 0 0 c0t31d0ONLINE 0 0 0 I'm running Solaris 10 U8. Am I hosed? Obviously my zpool is fine, but I'm thinkin there's no way to rid myself of this extra log device now... what if I physically yank the drive? Is there any way to get the above two merged as a mirror? Just for fun, I tried: # zpool attach storage c0t31d0 c0t29d0 invalid vdev specification use '-f' to override the following errors: /dev/dsk/c0t29d0s0 is part of active ZFS pool storage. Please see zpool(1M). What will happen if I do a -f? :) It looks like support for removing log devices is pending or available already in OpenSolaris, but, like I said, this is Solaris 10. I'll throw it to support as well, but thought I'd check here. Thanks, Ray ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
