Homelab Hero · No. 003 · Your result
Understandable — the spare is sitting right there. But you started the heaviest job a degraded pool can run before learning why the drive faulted, and before confirming last night's snapshot is good. If the fault was the cable or backplane, or a second drive is marginal, the rebuild is exactly the stress that finds out the hard way.
The lesson: A degraded pool is redundant, not urgent. Diagnose before you rebuild.
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