Florian Ermisch wrote:
Richard Elling schrieb:
[...]
ZFS maintains a cache of what pools were imported so that at boot time,
it will automatically try to re-import the pool. The file is
/etc/zfs/zpool.cache
and you can view its contents by using "zdb -C"
If the current state of affairs does not match the cache, then you can
export the pool, which will clear its entry in the cache. Then retry
the
import.
-- richard
I had this problem myself with a mirrored zpool in a ICY BOX IB-3218
(2 HDDs which appear as different LUNs) set up for backup purposes.
For zpool which are intended to be disconnect (or powered of) regulary
an 'autoexport' flag would be nice: If set the system exports the pool
at shutdown. This would prevent problems like Stefan's on a reboot and
when a zpool from a shutdown system is connected to an other system
(like "Hm, old slow laptop's powered off, but hey, everything I need
is also on this shiny 1.5TB USB-HDD-zpool with all my other important
stuff/backups.. *plug into workstation* OMG! My backup-pool is faulty!!")
There is a zpool parameter, "cachefile" which will effectively do this.
Yes, I think this is a good idea for removable media.
-- richard
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