Hi Sam, In general, FreeBSD uses different device naming conventions and power failures seem to clobber disk labeling. The "I/O error" message also points to problems accessing these disks.
I'm not sure if this helps, but I see that the 6 disks from the zdb -e output are indicated as c7t0d0p0 --> c7t5d0p0, and the paths resemble /dev/dsk/c7t1d0p0, which makes sense. When you look at the individual labels using zdb -l /dev/dsk/c7t1d0p0, the physical path for this disk looks identical, but the path=/dev/da4 and so on. I'm not familiar with the /dev/da* device naming. When I use zdb -l on my pool's disks, I see the same phys_path and the same path= for each disk. I hoping someone else who has patched their disks back together after a power failure can comment. Thanks, Cindy On 07/06/10 11:02, Sam Fourman Jr. wrote:
Hello list, I posted this a few days ago on opensolaris-discuss@ list I am posting here, because there my be too much noise on other lists I have been without this zfs set for a week now. My main concern at this point,is it even possible to recover this zpool. How does the metadata work? what tool could is use to rebuild the corrupted parts or even find out what parts are corrupted. most but not all of these disks were Hitachi Retail 1TB didks. I have a Fileserver that runs FreeBSD 8.1 (zfs v14) after a poweroutage, I am unable to import my zpool named Network my pool is made up of 6 1TB disks configured in raidz. there is ~1.9TB of actual data on this pool. I have loaded Open Solaris svn_134 on a seprate boot disk, in hopes of recovering my zpool. on Open Solaris 134, I am not able to import my zpool almost everything I try gives me cannot import 'Network': I/O error I have done quite a bit of searching, and I found that import -fFX Network should work however after ~ 20 hours this hard locks Open Solaris (however it does return a ping) here is a list of commands that I have run on Open Solaris http://www.puffybsd.com/zfsv14.txt if anyone could help me use zdb or mdb to recover my pool I would very much appreciate it. I believe the metadata is corrupt on my zpool
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