I have several older supermicro based NAS devices. Happened to be at our hosting facility today and saw that one had a disk failure. I thought that I was monitoring this via SNMP->Nagios but clearly I'm missing something crucial.
Suggestions on how best to track the status of these sorts of machines? For my Dell servers I use OpenManage and Nagios. It seems to do a good job of telling me when disks have failed, memory isn't happy, etc.