Brand-specific RAID failure symptoms and system-level confusion decoded
Not all RAID failures follow a clean pattern.
Sometimes it’s not your drives — it’s the controller firmware, the system BIOS, or the NAS operating system throwing curve balls. You might see vague errors like “foreign config”, “missing virtual disk”, or “array degraded after reboot” with no failed drives in sight.
These pages help you isolate symptoms specific to HP SmartArray, Dell PERC, LSI MegaRAID, Synology, QNAP, TrueNAS, and other common platforms.