cannot add to 'rpool': one or more devices is currently unavailable

[Tapio Lehtonen]

I'm trying to add ZIL to ZFS, but it fails with error message in topic.

root@pve:~# zpool status -v
  pool: rpool
 state: ONLINE
  scan: none requested
config:

    NAME        STATE     READ WRITE CKSUM
    rpool       ONLINE       0     0     0
      mirror-0  ONLINE       0     0     0
        sda2    ONLINE       0     0     0
        sdb2    ONLINE       0     0     0

errors: No known data errors
root@pve:~# zpool add  rpool log nvme0n1p1
cannot add to 'rpool': one or more devices is currently unavailable
root@pve:~#

I have tried different names for the log partition, no luck.
Adding cache worked first try,

root@pve:~# zpool add rpool cache nvme0n1p2
root@pve:~# zpool status -v
  pool: rpool
 state: ONLINE
  scan: none requested
config:

    NAME         STATE     READ WRITE CKSUM
    rpool        ONLINE       0     0     0
      mirror-0   ONLINE       0     0     0
        sda2     ONLINE       0     0     0
        sdb2     ONLINE       0     0     0
    cache
      nvme0n1p2  ONLINE       0     0     0

errors: No known data errors
root@pve:~#

root@pve:~# fdisk -l /dev/nvme0n1
Disk /dev/nvme0n1: 232.9 GiB, 250059350016 bytes, 488397168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 1AAD40D7-7D88-4B94-83FF-DFB2B1C714B5

Device          Start       End   Sectors   Size Type
/dev/nvme0n1p1   2048     16000     13953   6.8M Linux filesystem
/dev/nvme0n1p2  16384    160000    143617  70.1M Linux filesystem
/dev/nvme0n1p3 161792 488397134 488235343 232.8G Linux filesystem
root@pve:~#

 

[Tapio Lehtonen]

Just realized the partition sizes are Mbytes and not Gbytes, as was intended. Guess the partition is much too small, and thus is "unavailable" for use as log.

 

[Klaus Steinberger]

Just realized the partition sizes are Mbytes and not Gbytes, as was intended. Guess the partition is much too small, and thus is "unavailable" for use as log.

Yes, that's probably the case. 8 GByte for a ZIL should be fine.