One of our customers has a Dell PowerEdge T420, with an external Quantum lto6 drive connected to the external sas connector.
From about Nov 15, we started seeing tape backup jobs failing in Veeam. When we check the Windows system log at that time, we're seeing a number of Event ID: 11 LSI_SAS2 The driver detected a controller error on \Device\RaidPort1.
We're now seeing this a lot more, and its causing a lot problems with backups to tape.
Any ideas ?