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RAID

Undead Yes ─ UnRAID No

My only NAS is my PC. At least, what people would usually do with, or build a NAS for, I just do it with my PC.

Most of my disk storage space is a BTRFS RAID 1 using two 6TB WD BLACK 3.5″ HDD. This setup offers block-level redundancy which is better than the classic device-level redundancy offered by Linux Software RAID or hardware RAID. To keep BTRFS file systems healthy, it is strongly recommended to run a weekly scrub to check everything for consistency. For this, I run the script from crontab every Saturday night (it usually ends around noon the next day).

One Sunday morning, after many successful scrubs, I woke up to both disks failing, each in a different way. But this was not the end of it. And the end of this adventure, disks emerged victorious.

Keeping reading to find out how the disks came back from the dead.

Illustration by Paul Kidby: Zombie leads a small parade of undead citizens with a wooden sign that reads UNDEAD YES - UNPERSON NO