ZFS Ponderings

So my TrueNAS has a primary pool of fifteen (3×5 RAIDZ2) drives in an external enclosure. However five of the drives (one VDEV) show as “UNKNOWN” status, though the pool otherwise reports as healthy. However, if I go to attempt to create a new pool, the five drives that should be in the above pool are listed as available. This has me wondering if something is potentially going to go borked up at some point. Should I copy the data off and rebuild the pool from scratch?

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