====== Real-World RAID 5 Failures ====== ===== Unrecoverable Read Errors ===== [[http://community.spiceworks.com/topic/208993-hp-dl185-g5-server-offline-raid-config|HP DL185 G5 Server offline RAID config]] \\ http://community.spiceworks.com/topic/208993-hp-dl185-g5-server-offline-raid-config \\ In-the-wild SATA RAID 5 URE. [[http://community.spiceworks.com/topic/407830-dell-poweredge-2900-sas-drive-failure-in-raid-5]] \\ http://community.spiceworks.com/topic/407830-dell-poweredge-2900-sas-drive-failure-in-raid-5 \\ Another URE ===== Array Controller ===== [[http://community.spiceworks.com/topic/137136-why-i-don-t-like-raid-5|Why I don't like RAID 5]] \\ http://community.spiceworks.com/topic/137136-why-i-don-t-like-raid-5 \\ During a rebuild, a controller trashes a RAID 5 array, but recovers a RAID 1. ===== Multi-drive Failures ===== [[http://community.spiceworks.com/topic/202184-raid-5-fail-10-yrs-of-family-pics-gone|RAID 5 fail. 10 yrs of family pics gone]] \\ http://community.spiceworks.com/topic/202184-raid-5-fail-10-yrs-of-family-pics-gone \\ Admittedly, this multi-drive failure of a RAID 51 was more of a slow-motion crash... [[http://community.spiceworks.com/topic/165077-simultaneous-hdd-failure-in-a-raid|Simultaneous HDD failure in a raid]] \\ http://community.spiceworks.com/topic/165077-simultaneous-hdd-failure-in-a-raid \\ A thread soliciting experience with multi-drive failures. [[http://community.spiceworks.com/topic/241429-raid-5-oh-dear|Raid 5 ... Oh dear...]] \\ http://community.spiceworks.com/topic/241429-raid-5-oh-dear \\ The time frame of the two drives isn't specified. [[http://community.spiceworks.com/topic/243294-rebuild-array-through-firmware-ignore-erros|Rebuild array through firmware, Ignore erros?]] \\ [[http://community.spiceworks.com/topic/243294-rebuild-array-through-firmware-ignore-erros]] \\ With a drive in pre-fail status, the array won't rebuild. [[http://community.spiceworks.com/topic/249371-sbs-2003-to-sbs-2011|SBS 2003 to SBS 2011]] \\ [[http://community.spiceworks.com/topic/249371-sbs-2003-to-sbs-2011]] \\ 2 of 3 (!!!) drives in a RAID 5 failed. ===== Dreaded Array Confusion ===== The array shows faulted but the drives are fine... [[http://community.spiceworks.com/topic/152238-dell-pe-2500-perc-3di-dead-containers|Dell PE 2500 perc 3di Dead containers]] \\ http://community.spiceworks.com/topic/152238-dell-pe-2500-perc-3di-dead-containers [[http://community.spiceworks.com/topic/227105-raid-5-volume-fails-but-disks-are-green|RAID 5 Volume Fails But Disks Are Green]] \\ http://community.spiceworks.com/topic/227105-raid-5-volume-fails-but-disks-are-green [[http://community.spiceworks.com/topic/256197-fix-raid-5-array-with-psycho-controller-config|Fix RAID-5 Array with Psycho Controller Config]] \\ http://community.spiceworks.com/topic/256197-fix-raid-5-array-with-psycho-controller-config ===== Catastrophic Plant Failure ===== The array might fail and cause the entire building to blow up... [[http://abclocal.go.com/ktrk/story?section=news/local&id=9015094|Explosion leads to fire at AkzoNobel plant in La Porte]] \\ http://abclocal.go.com/ktrk/story?section=news/local&id=9015094