zpool Upgrade

List all block devices:

% lsblk
DEVICE         MAJ:MIN SIZE TYPE                                          LABEL MOUNT
ada0             0:128 112G GPT                                               - -
  <FREE>         -:-   3.0K -                                                 - -
  ada0p1         0:130 512K freebsd-boot                           gpt/gptboot0 -
  <FREE>         -:-   492K -                                                 - -
  ada0p2         0:132 4.0G freebsd-swap                              gpt/swap0 SWAP
  ada0p3         0:134 108G freebsd-zfs                                gpt/zfs0 <ZFS>
  <FREE>         -:-   456K -                                                 - -
ada1             0:137 2.7T GPT                                               - -
  <FREE>         -:-   3.0K -                                                 - -
  ada1p1         0:154 2.7T freebsd-zfs                               gpt/diska <ZFS>
  <FREE>         -:-   3.5K -                                                 - -
ada2             0:139 1.8T GPT                                               - -
  <FREE>         -:-   3.0K -                                                 - -
  ada2p1         0:157 1.8T freebsd-zfs                               gpt/diskb <ZFS>
  <FREE>         -:-   3.5K -                                                 - -
ada3             0:141 2.7T GPT                                               - -
  <FREE>         -:-   3.0K -                                                 - -
  ada3p1         0:160 2.7T freebsd-zfs                               gpt/diskc <ZFS>
  <FREE>         -:-   3.5K -                                                 - -
ada4             0:143 2.7T GPT                                               - -
  ada4p1         0:163 2.7T freebsd-zfs                               gpt/disce <ZFS>
  <FREE>         -:-   4.0K -                                                 - -
ada5             0:145 7.3T GPT                                               - -
  <FREE>         -:-   3.0K -                                                 - -
  ada5p1         2:50  7.3T freebsd-zfs                            gpt/backup06 <ZFS>
  <FREE>         -:-   3.5K -                                                 - -

Insert new disk, create a gpt partition table and a new partiton (remember to replace ada4 and diskx with the appropriate disk name; I have inconsistently named older disks sometimes disc or disk).

# gpart create -s gpt ada4
# gpart add -a 4k -t freebsd-zfs -l diskx ada4

Then replace the disk. (The longer number will show up in zpool status

# zpool replace -f storage 10024461117764645891 gpt/diskx

If the minium disk size of the pool is larger than before, expand the pool by onlining every single disk:

cg@brutus% sudo zpool online -e storage gpt/diska
cg@brutus% sudo zpool online -e storage gpt/diskb
cg@brutus% sudo zpool online -e storage gpt/diskc
cg@brutus% sudo zpool online -e storage gpt/diskd

Last upgrade

2022-02-17

Before:

cg@brutus% zfs list storage
NAME      USED  AVAIL  REFER  MOUNTPOINT
storage  4.76T   355G   151K  /storage

after:

cg@brutus% zfs list storage
NAME      USED  AVAIL  REFER  MOUNTPOINT
storage  4.76T  2.90T   151K  /storage
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