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Pool Offline but Disk Still Showing

Western Digital Drives - The Preferred Drives of FreeNAS and TrueNAS CORE


Feb 27, 2021

First of all, I am a new TrueNAS user and I know only enough to be dangerous to myself. (I come from using Synology and WD products and TrueNAS is a tad more complicated)

Yesterday I had a power outage and my UPS died before the power came back on, resulting in my TrueNAS system powering off. Upon powering back on, I noticed one pool was marked as offline, however, the disk is still showing up. I tried restarting the system again and the pool is still offline. I have no idea what is wrong or how to fix it. Can someone please point me in the right direction in order to fix the pool? This particular pool has only one disk in it (its a backup drive only so if I lose data I don't care).

Please let me know what information I can provide.