Fixing RAID5 array after replacing a disk on QNAP TS-453A

Submitted by mhy on Sat, 04/04/2020 - 19:36

I have a QNAP TS-453A NAS with 4 6TB disks configured as a RAID5 storage pool. Currently with firmware

Yesterday I discovered that one of the disks (disk 3) had failed, and that the storage pool was in a "Degraded" state.

I quickly got a new disk. The old disk was a WD Red 6TB WD60EFRX, the new one is a WD Red 6TB  WD60AFEX. I hot-swapped the disks. According to the documentation, the new disk should be detected automatically, and the storage pool should automatically start rebuilding ("Rebuilding" state). But nothing happened.

SMTP proxy for SQLgrey whitelisting mhy Fri, 04/29/2011 - 17:34
This page describes the SMTP proxy that I started out with when I added sender whitelisting to SQLgrey. It's based on smtpprox.