Questions tagged [zpool]
8 questions
2
votes
1 answer
ZFS zpool cannot be imported, cause panic if not imported as readonly
After a reboot, ZFS pool never stopped trying to import the pool. It was blocking the boot-sequence and I had to rename the /etc/zfs/zpool.cache to another name, in order to boot the system.
There was an upgrade made before reboot, but that was not…
1
vote
0 answers
Identify why zfs is busy, cannot be destroyed
I have a zpool (SSDs) comprised of three drives. This pool was moved to a UBUNTU system from a retired FREENAS system, and there is no "valuable" or meaningful data on the drives. The list of filesystems in this pool is:
SSDs …
Dennis
- 225
1
vote
0 answers
zpool disappeared at reboot
I am running zfs pools on a ubuntu 24.04LTS server. (There is no effort to run the server boot on zfs.) I have just today physically moved the server (A Silverstone 8-bay case with mods) from one shelf to another. Before the move, there were two…
Dennis
- 225
1
vote
2 answers
lvm semantics compared with Mac OS container volumes - sharing storage between logical volumes?
I'm very new to lvm, and have simultaneously understood how Mac OS container disks work.
I'm very happy with Mac OS container disk semantics - I don't have to think how much space to allocate. I just create whatever volumes I want, and space gets…
Sridhar Sarnobat
- 1,552
1
vote
1 answer
zpool cannot properly import missing pool after system crash
I have a raidz3 zpool on Ubuntu 18.04 with the Ubuntu built-in zfs features, there was a system crash recently, I guess it's caused by an unavailable(failed) disk, and after rebooting, the pool was missing:
$ sudo zpool status
no pools…
1
vote
1 answer
Zpool transparent migration
I would like to move an active pool's data to a new pool, retiring the old pool and making the new pool live in its place, without any downtime. I imagine it going something like:
Create new pool
Temporarily mirror new pool with old pool while…
J Collins
- 878
0
votes
1 answer
ZFS very slow write speed
I've set up ZFS on OpenSUSE Tumbleweed, on my T430 server using 8x SAS ST6000NM0034 6TB 7.2K RPM drives. The ZFS pool is setup as RAIDZ-2 and the dataset has encryption.
I'm getting very slow writes to the pool, only about 33MB/s. Reads however are…
Josh
- 1
0
votes
0 answers
How do I import a ZFS pool from a de- and re-attached drive array?
This is not the same as importing a pool from a crashed system as the system has not crashed. The OS is fine (on a different pool/set of drives/sata bus).
I'd like to copy some key files before rebooting (and having it not come up clean, with no…
math
- 261