ZFS change device names

[gryf]

Hi!

I currently playing around with ZFS and noticed a very odd behavior.
Pool's name is storage and my aliases in vdev is vdisk1 to vdisk6.

If I create a new pool and uses /by-id or /by-vdev then the pool is create as it should and zpool status storage shows the Id's or aliases used.

#zpool status storage
  pool: storage
 state: ONLINE
  scan: none requested
config:


        NAME        STATE     READ WRITE CKSUM
        storage     ONLINE       0     0     0
          raidz2-0  ONLINE       0     0     0
            vdisk1  ONLINE       0     0     0
            vdisk2  ONLINE       0     0     0
            vdisk3  ONLINE       0     0     0
            vdisk4  ONLINE       0     0     0
            vdisk5  ONLINE       0     0     0
            vdisk6  ONLINE       0     0     0

But if I do a zpool export pool and zpool import storage suddenly some of my disks are listed as sdb sdc .. and so on.

#zpool status storage
  pool: storage
 state: ONLINE
  scan: none requested
config:


        NAME        STATE     READ WRITE CKSUM
        storage     ONLINE       0     0     0
          raidz2-0  ONLINE       0     0     0
            sdb     ONLINE       0     0     0
            vdisk2  ONLINE       0     0     0
            sdc     ONLINE       0     0     0
            sde     ONLINE       0     0     0
            vdisk5  ONLINE       0     0     0
            sdg     ONLINE       0     0     0


errors: No known data errors

But if I do a zpool import -d /dev/disk/by-vdev/ storage then all is fine again!
I don't quite see what have changed for zfs to import wrongly, so my question is: Why is this happening and is the any way I can avoid it?
Is is possible to make it so zfs used -d /dev/disk/by-vdev/ at startup so the pool is started with the right devices?

 

[dietmar]

I think the vdev_id binary is missing in initrd:

https://github.com/zfsonlinux/zfs/commit/48511ea6454224bc96ac518501a89ba52d7a5102

I will try to upload a fix asap.

 

[gryf]

Sounds good, I look forward to see if that fixes the issue.

 

[gryf]

If I edit /etc/default/zfs and add:
ZPOOL_IMPORT_PATH=/dev/disk/by-vdev/

then my storage pool is imported with the vdev names.