we have 2 HP BL460 G6 blades running SLES11 SP3 and CommVault Simpana 10 SP8 Media Agent. They are connected to a 3PAR storage through a QLogic 4GBit/s HBA. The driver is from SLES11 SP3.
Now I have the problem that the CommVault Simpana DeDup process gets stuck regularly (every few days). Each time this happens I see a lot of these "qla2xxx: Ramping down queue depth" messages. Could this be related?
To backup the DeDup database CommVault Simpana creates snapshots of the LVM volumes. If the backup takes too long, the COW file becomes full. Could this have an impact on the running DeDup process?