Hi there,
I have a small backup server (8.2-STABLE). It boots from ufs and has a zfs
pool for backups that consists of 8 drives configured as 4 mirrored devices,
totally around 2.5 TB.
Been working great, no issues, until the past few days when remote rsyncs to it
have started to get very slow (it's only at around %50 capacity). Rebooting it
helps for a while, then it gets slow again. But this isn't the problem now...
After the last reboot, it froze while booting right at the point where the file
system gets mounted. No errors, it just doesn't proceed past the ZFS version
message.
I rebooted single user and tried to access it with "zpool status", and the
command hangs in the same way. Any attempt to access it ("zfs list", for
example) does the same thing.
The disks themselves seem fine. They are all connected to a pair of Adaptec
RAID controllers (configured as individual drives, with mirroring handled by
zfs) and the controller software shows them all to be intact.
I disabled zfs in rc.conf and was able to boot, but I can't access the pool.
Any ideas on how to diagnose and hopefully repair this?
Mark
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