Update on my truenas0 pool issue:
I followed both of your suggestions as closely as possible.
Hardware & Diagnostics:
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Motherboard: BKHD-1264-NAS (Intel N100)
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Drives: 4× HGST HUS726040ALE614 4TB connected via onboard JMB585 SATA controller + hot-swap backplane
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Pool layout: Single RAIDZ1 vdev (4 drives)
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TrueNAS SCALE version: 24.10.2 (Electric Eel)
Diagnostics performed:
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Long SMART tests on all 4 drives → All PASSED
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Memtest86 → 4 full passes with 0 errors (the Memtest86 defaulted to 4 passes only I didn’t think I needed to run it again)
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CPU + RAM stress test (stress-ng, 30 minutes) → Passed (6/6 tests passed, CPU temp stayed ~77-78°C)
I also ran the sudo zpool import command and got the following output:
pool: truenas0
id: 14434060225059854200
state: FAULTED
status: The pool metadata is corrupted.
action: The pool cannot be imported due to damaged devices or data.
The pool may be active on another system, but can be imported using
the ‘-f’ flag.
see: Message ID: ZFS-8000-72 — OpenZFS documentation
config:
truenas0 FAULTED corrupted data
raidz1-0 ONLINE
7302f31c-8cae-4364-ba71-76abfa2efa9f ONLINE
bd9bab8b-6512-4838-9370-67e10c15ba75 ONLINE
13114f33-83e6-4d17-8c35-3394bcc848f4 ONLINE
c6b6eefc-0902-4de9-a9b6-7d5366813bdc ONLINE
Thanks again for your help.