Re: ZFS panic after replacing log device

2010-11-29 Thread Dan Langille
On 11/16/2010 8:41 PM, Terry Kennedy wrote: I would say it is definitely very odd that writes are a problem. Sounds like it might be a hardware problem. Is it possible to export the pool, remove the ZIL and re-import it? I myself would be pretty nervous trying that, but it would help isolate t

Re: ZFS panic after replacing log device

2010-11-16 Thread Terry Kennedy
> I would say it is definitely very odd that writes are a problem. Sounds > like it might be a hardware problem. Is it possible to export the pool, > remove the ZIL and re-import it? I myself would be pretty nervous trying > that, but it would help isolate the problem? If you can risk it. I

Re: ZFS panic after replacing log device

2010-11-15 Thread Michael DeMan
Hi, sorry for not completely digesting your original post. I would say it is definitely very odd that writes are a problem. Sounds like it might be a hardware problem. Is it possible to export the pool, remove the ZIL and re-import it? I myself would be pretty nervous trying that, but it wou

Re: ZFS panic after replacing log device

2010-11-15 Thread Michael DeMan
Hi Terry, I am no ZFS kernel-code dude or anything, but it is well known that losing the ZIL can corrupt things pretty bad with ZFS. You may want to skim the archives at OpenSolaris ZFS discuss All in all, if I was in your situation I would give a whirl at installing OpenSolaris and going fr

Re: ZFS panic after replacing log device

2010-11-15 Thread Terry Kennedy
> I am no ZFS kernel-code dude or anything, but it is well known that losing > the ZIL can corrupt things pretty bad with ZFS. First, thanks for writing back! I agree that this could be the problem. As I mentioned in my original post, I followed the steps recommended by "zpool status" - clear

Re: ZFS panic after replacing log device

2010-11-15 Thread Terry Kennedy
> I can give a developer remote console / root access to the box if that would > help. I have a couple days before I will need to nuke the pool and restore it > from backups. I haven't heard from anyone that wants to look into this. I need to get the pool back into service soon. If I don't get

ZFS panic after replacing log device

2010-11-13 Thread Terry Kennedy
I'm posting this to the freebsd-stable and freebsd-fs mailing lists. Followups should probably happen on freebsd-fs. I have a ZFS pool configured as: zpool create data raidz da1 da2 da3 da4 da5 raidz da6 da7 da8 da9 da10 raidz da11 da12 da13 da14 da15 spare da16 log da0 where da1-16 are WD2003F