From my reading, z1 seems to be a good mix. My only concern is I know for a fact I would want to expand this in the future.
Am I correct that the only way to expand a z1 raid pool is to keep the number of disks the same but increase their individual size?
Ideally I would like to add 2 more 24TB at a later time and add them to the existing array.
Afaik you have 2 option:
Also to mention, raidz1 with so large disks Is not so raccomended: in case of a disk failure, during the long replacement/resilver process no parity Is available and the chance that another disk will fails are high.
I appreciate the help.
It seems like trying the pool expansion (zfs) is my option. That would be TrueNas Scale, correct?
yep, is available from EEL if i’m not wrong. Here the official documentation
If you have robust recent backups and so are happy for the array to fail in a resilver raidz1 is OK, but z2 is safer. Those are big drives, and a loose cable in a long rebuild could ruin your day, drive failure during resilver is not the only failure mechanism.
You can’t change from raidz1 to raidz2 later on without rebuilding the array, do you think with 6 or more drives you’d still be OK with z1?
