Post #2577048
2026-05-09 05:50 UTC
migrating data from an older QNAP with larger drives into a TrueNAS config with some mixed-size drives and I'm doing horrible, horrible things using a temporary zpool of mixed RAIDZ1 and mirrored partitions ... but I swear I sort of know what I'm doing
Replies (1)
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@nonspecialist@aus.social 2026-05-09 06:33
Detail, for posterity: 2 x 8TB drives 2 x 4TB drives therefore: partition all drives with a 4TB partition partition the 8TB drives with a second 4TB partition zpool create migration \ raidz1 /dev/sd[cdef]1 \ mirror /dev/sd[ef]2 This pool only exists to get data out of the existing (mdadm) NAS; once data is transferred, the 4x8TB drives from the QNAP will be moved into the TrueNAS array, a new RAIDZ1 zpool created, and the data copied from the migration zpool into it; and then the 2 x 8TB drives added to the new zpool to expand it, and probably the 2 x 4TB drives set up in a separate mirrored zpool specifically for backups or something.