Hi, we have been using Commvault v10 SP? (I can't remember exactly what SP we are on at the moment, SP8 maybe) and vSphere 5.5 U2.
We have be doing image level backups quite relialbly all year. Several weeks ago we had an array outage and dropped 40 volumes from our hosts. They all recovered after several hours after we got the array back up.
Since then Commvault will not do any image level backups. It falls back to network backup. We have commvault and vmware looking at logs and everyone seems to be unsure. I certainly didnt want to log dump here, just thinking if anyone had something similar. Vcenter has already been rebooted. And we verified the VDDK apis on both vcenter and commvault are compatible. Its a huge mystery.