Server reporting SAS cable A failure? 5-minute quick troubleshooting guide for connection issues
Server throwing SAS cable A failure or SAS connector A is degraded alerts? Don’t panic—90% of the time it’s a simple fix, no fancy tools needed!
Here’s a 5-minute quick check (works for Dell PowerEdge, Huawei FusionServer, IBM too):
🔹 1min: Check the alert log (iDRAC/BMC) to confirm it’s Port A—usually from loose cables or bad connections.
🔹 2min: Power down safely, re-seat the SAS A cable (both ends!) until it clicks. Loose SAS cables are the #1 culprit.
🔹 3min: Swap SAS A & B cables—if the alert moves to B, the cable is broken. Check for bent pins/dust too!
🔹 4min: Reseat the RAID card (clean the gold fingers if needed)—RAID card connection issues often mimic cable failures.
🔹 5min: For JBODs, double-check cabling topology—no crossed cables!