The SANtricity or the storage log bundles may indicate there is a failed power supply. It will typically indicate whether it is the (Top) or the (Bottom) power supply. Below is a sample error message seen in the recovery-guru-procedures.html file
Failure Entry 1: FAILED_POWER_SUPPLY-Recovery Failure Type Code: 2
Storage array: XXXXXXXX
Component reporting problem: Power Supply (Bottom)
Status: Failed
Location: Controller/Drive Tray 99, 99
Component requiring service: Power supply canister (Bottom)
Service action (removal) allowed: Yes Service action LED on component: No
Dell MD3860f
NetApp E5660