https://community.hpe.com/t5/disk-enclosures/problem-w-raid4si-amp-ds2100/m-p/3069867#M9685 Setup:<BR />HP9000 L2000<BR />A5856A RAID 4SI controller<BR />Six DS2100 disk cabinets<BR />Twenty 36GB drives<BR /><BR />This equipment is in a managed colocation center with highly redundant environmental controls (power, cooling, etc).<BR /><BR />The storage is carved as two logical drives. One is 0+1, the other 0+5. Three hotspares. All filesystems, including boot, are on this external storage.<BR /><BR />Yesterday morning both logical drives went offline.<BR /><BR />I booted from the install disk and ran the raid configuration tool. The system was reporting SEVEN! failed drives. Three of these were the hotspares, which were all now assigned to a raid array. The three drives for which they had taken over were all marked Ready. But they must have earlier also been marked as Failed, since the hotspares kicked in.<BR /><BR />So call it 10 failed drives. Or whatever... suffice it to say that a bunch were marked "Failed" in a very short timeframe, a few minutes max.<BR /><BR />These failed drives were spread over at least three of the four SCSI channels on the RAID 4SI controller.<BR /><BR />With few options, I just started forcing the "failed" drives to an "online" state, ignoring the warnings about data integrity.<BR /><BR />Rebooted and the system seems fine. irconcheck is running now and, at 80% complete, hasn't yet reported any problems.<BR /><BR />Questions:<BR />1. What happened?<BR />2. What can I do to ensure it never happens again?<BR /><BR />TIA. Fri, 12 Sep 2003 12:47:40 GMT Greg Philmon_1 2003-09-12T12:47:40Z https://community.hpe.com/t5/disk-enclosures/problem-w-raid4si-amp-ds2100/m-p/3069867#M9685 Setup:<BR />HP9000 L2000<BR />A5856A RAID 4SI controller<BR />Six DS2100 disk cabinets<BR />Twenty 36GB drives<BR /><BR />This equipment is in a managed colocation center with highly redundant environmental controls (power, cooling, etc).<BR /><BR />The storage is carved as two logical drives. One is 0+1, the other 0+5. Three hotspares. All filesystems, including boot, are on this external storage.<BR /><BR />Yesterday morning both logical drives went offline.<BR /><BR />I booted from the install disk and ran the raid configuration tool. The system was reporting SEVEN! failed drives. Three of these were the hotspares, which were all now assigned to a raid array. The three drives for which they had taken over were all marked Ready. But they must have earlier also been marked as Failed, since the hotspares kicked in.<BR /><BR />So call it 10 failed drives. Or whatever... suffice it to say that a bunch were marked "Failed" in a very short timeframe, a few minutes max.<BR /><BR />These failed drives were spread over at least three of the four SCSI channels on the RAID 4SI controller.<BR /><BR />With few options, I just started forcing the "failed" drives to an "online" state, ignoring the warnings about data integrity.<BR /><BR />Rebooted and the system seems fine. irconcheck is running now and, at 80% complete, hasn't yet reported any problems.<BR /><BR />Questions:<BR />1. What happened?<BR />2. What can I do to ensure it never happens again?<BR /><BR />TIA. Fri, 12 Sep 2003 12:47:40 GMT https://community.hpe.com/t5/disk-enclosures/problem-w-raid4si-amp-ds2100/m-p/3069867#M9685 Greg Philmon_1 2003-09-12T12:47:40Z