Puredisk volume down alert (via opscenter)

Hey All,

• NBU 7.5.0.4 on all master/media server
• 5220 Appliance (2.5.1)

I am receiving a Puredisk volume down alert (via opscenter), however no backups fail in the window that Opscenter states. I believe the alert to be bogus and I am looking on the log directories via the CLISH to verify this. However, Im not sure which specific logs to investigate. 

Any input is greatly appreciated.