Title explains it. Immediately upon reboot into 7.3.1, alerts started on excessive read/write errors on both drives in the cache pool. I rebooted into Memtest which passed w/ 0 errors. Seems odd that both drives would fail at the same time and right after an upgrade. They are high endurance nvme ssds mounted in a pci-e adapter. Appreciate your help as always.

logs attached.

executor-diagnostics-20260622-1903.zip

Edited June 23Jun 23 by CorserMoon

For those that find this later, I seemed to have remedied this by performing 2 cold reboots followed by a btrfs scrub and btrfs rebalance. I'll keep an eye on the error stats and will report back if they climb again.