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We currently have a server with 5x3TB disks configured as a RAIDZ:

zpool status
pool: raid-5x3
state: ONLINE
scrub: none requested
config:

NAME                                              STATE     READ WRITE CKSUM
raid-5x3                                          ONLINE       0     0     0
  raidz1                                          ONLINE       0     0     0
    ada1p2                                        ONLINE       0     0     0
    replacing                                     ONLINE       0     0     0
      ada2p2                                      ONLINE       0     0     0
      gptid/a767b8ef-1c95-11e2-af4c-f46d049aaeca  ONLINE       0     0     0
    ada4p2                                        ONLINE       0     0     0
    ada5p2                                        ONLINE       0     0     0
    ada3p2                                        ONLINE       0     0     0

errors: No known data errors

We want to add 5 more 3TB disks into the same machine, and enlarge the current volume ... is that possible?

I am still confused by the terminology -- vdev/zpool/volume/dataset -- want to make sure I do it right.

As I understand it, I will need to make a new RAIDZ out of the 5 new disks -- is that a vdev? Then add that vdev to the current pool, and we will end up with 10x3TB - 2x3TB = 24TB of storage, where each set of 5 disks can sustain 1 disk failure.

Just not sure what the exact steps are to do this !

Also -- not sure why zpool status still says "replacing" -- it's been like that for several weeks, since I replaced a disk with a hot spare. Is it safe to remove the old disk now?

Thanks!

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