On 01/12/2021 11:55, Michelle wrote:
I have closing on 12TB of data so even the 10 won't be enough to back
everything up, but this is as much for the exercise of doing it, as
achieving anything solid. It won't be under pressure, but I'd rather
push the envelope and see what I can do.
So how would the command go?
zpool create tank raidz mirror drive1 drive2 mirror drive3 drive4
drive5
...which is where I come unstuck with the 2TB drive in the mix.
You are right to be stuck as ZFS can not make a mirror of raid0 in one
command, zfs is wanting raid0 of mirrors which you can't get to 10TB
because you don't have pairs. You can pair the 4&6 and raid0 with 4&4
and get 8TB of continuous pool.
Partition the 6 into 4 and 2, then you have pairs for raid0 of mirrors.
Loose the 6TB and you loose 1/2 of 2 mirrors but you are better off than
loosing 1/2 the entire mirror with mirror of raid0. 10TB using all devices.
Try making 2 raid0 pools 2+4+4 and 4+6, create volumes on those pools
and use to make a mirror, /dev/zvol/dsk/etc... Untested and I can't see
it being better.
Use raidz1 of 4, 4, 4, and 6 = 12TB. This ignore 2TB of the 6 and you
get a bonus doorstop by not using the 2TB. 3+1 is not a preferred
arrangement.
_______________________________________________
openindiana-discuss mailing list
[email protected]
https://openindiana.org/mailman/listinfo/openindiana-discuss
