I'm on Ubuntu 16.04.1 LTS and I have a ZFS pool named unas containing two mirrored drives. I have now attached two more drives and I want to add these new drives to my unas pool as a pair of mirrored drives so that I end up with one pool, named unas, which contains 4 drives, grouped into mirrored pairs.
The results of the
zpool status command, shown below, show my current configuration. What steps and commands do I use to mirror the two new drives and then add those mirrored drives to my unas pool?
Is it as simple as using the following command to add the two new drives as a mirrored pair?
$ zpool add unas mirror newDrive1 newDrive2
The results of my current zpool status are:
$ sudo zpool status pool: unas state: ONLINE scan: scrub repaired 1.50M in 36h3m with 0 errors on Thu Jun 9 08:06:41 2016 config: NAME STATE READ WRITE CKSUM unas ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ata-WDC_WD30EFRX-68EUZN0_WD-WCC4N1VUU0LX ONLINE 0 0 0 ata-WDC_WD30EFRX-68EUZN0_WD-WCC4N7FSX6F9 ONLINE 0 0 0 errors: No known data errors