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Last active February 22, 2024 19:56
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migrating to larger disks with a zfs mirror
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zfs-mirror-new-disks.md

This was confusing and I had to do a lot of searching to find the right terms.

My process was:

  1. break the mirror (zpool split pool pool2) to keep a backup offline.
  2. look up the wwn number to sata port in /dev/disk/by-id
  3. power down the system and unplug the pool disk to keep
  4. plug in the two new disks and join them to the mirror (zpool attach pool wwn-existing-member wwn-new-disk)
  5. wait 18-24 hours for resilvering to complete

references

  1. breaking the mirror - https://docs.oracle.com/cd/E19253-01/819-5461/gcfhe/index.html

  2. attaching new disks to a mirror - https://docs.oracle.com/cd/E19253-01/819-5461/gjooc/index.html

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