this post was submitted on 14 Oct 2024
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What RAID system did you use which corrupted your data on power loss? With software raid like zfs I believe corruption on power loss shouldn't be a problem (unless the hardware fails. Or your using btrfs raid 5/6, ignoring all warnings).
Edit: For this reason I'm looking into buying another drive for an offline backup of my media files. I could redownload them, but it'd be increasingly more annoying.
I have this https://shop.terra-master.com/products/terramaster-d5-300-usb3-1-gen1-type-c-5-bay-external-hard-drive-enclosure-support-raid-0-raid-1-raid-5-raid-10-clone-jbod-single-disk-hard-disk-raid-storage-diskless
I had a support ticket with them and they told me it was hardware failure. I'm not sure right now but I know It is and was raid 5.
I'd also bet against not hardware failure.
Traditional RAID5 (and others) is subject to data loss in the middle of a write that can break entire arrays if it happens.
Seen it on various LSI controllers, mdraid in Linux, and even a Windows implementation in Storage Spaces. I mean it's rare and mostly won't, but if you get unlucky and lose just enough data from just the right places, well....
Wouldn't imagine that any particular NAS appliance is using some magic sauce that prevents it from happening if you get unlucky as to a crash/power outage.