3 ms·
> It does not support different sized drives in a raidz % mkfile -v 64m /var/tmp/d0 /var/tmp/d0 67108864 bytes % mkfile -v 96m /var/tmp/d1 /var/tmp/d1
by Annatar 10y ago
> It does not support different sized drives in a raidz
% mkfile -v 64m /var/tmp/d0
/var/tmp/d0 67108864 bytes
% mkfile -v 96m /var/tmp/d1
/var/tmp/d1 100663296 bytes
% mkfile -v 128m /var/tmp/d2
/var/tmp/d2 134217728 bytes
% sudo zpool create -f pool0 raidz /var/tmp/d0 /var/tmp/d1 /var/tmp/d2
Password:
% zpool status
pool: pool0
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
pool0 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
/var/tmp/d0 ONLINE 0 0 0
/var/tmp/d1 ONLINE 0 0 0
/var/tmp/d2 ONLINE 0 0 0
errors: No known data errors
- stewartbutler 10y agoYou can build it, but it is limited to the smallest device in the vdev, so the array will appear to only have three devices of 64m available. Though you can replace all smaller disks and grow it.
- Annatar 10y agoThat is not how RAIDZ works. Because every write is a dynamic width stripe, the capacity is an aggregate minus parity, not linear. The smallest device capacity applies to RAID1+0, which is mirroring, but it does not apply to RAIDZ.