Day 23 of #100DaysOfHomelab had me focusing on fixing some disk errors thrown recently by TrueNAS and a new backup strategy.
The disk errors were on my SSD cluster of 5 500GB drives that I use to host VMs, Kubernetes Volumes, and shared configuration files for my proxmox cluster. Thankfully, running the disk scrub on the pool fixed the errors and I haven't seen any since. I'm not sure what caused them, but I'm glad they are gone. Just in case I have a spare 500GB SSD ready to go if I need to replace one of the drives. SSD prices have come down a lot recently, so I have considered upgrading this to 1TB drives and dropping it to a mirrored stripe instead of a RAIDZ1.
I also added a new backup strategy for some of the data on my SSD pool to a mirrored 4TB pool I have sitting dormant. This pool has 2 drives that are from an older server from back in 2018 when I first started getting into my homelab. They aren't as performant as they are 2.5 inch drives, but they will work as a hot backup in case for some reason that SSD pool gets degraded. I have it setup now to run every 6 hours.