16 Contents
Recovering From an Unidentified Storage Array . . . 258
Starting or Restarting the
Host Context Agent Software . . . . . . . . . . . . . 261
20 Troubleshooting: Your Array . . . . . . . . . 263
Safety First—For you and Your Array . . . . . . . . . 263
Troubleshooting Storage Array Startup Failure. . . . 263
Troubleshooting Loss of Communication . . . . . . . 263
Troubleshooting External Connections . . . . . . . . 263
Troubleshooting Power
Supply/Cooling Fan Module . . . . . . . . . . . . . . 264
Troubleshooting Array Cooling Problems. . . . . . . 265
Troubleshooting Expansion
Enclosure Management Modules . . . . . . . . . . . 265
Troubleshooting RAID Controller Modules . . . . . . 266
Troubleshooting Hard Drives . . . . . . . . . . . . . 268
Troubleshooting Array and
Expansion Enclosure Connections . . . . . . . . . . 269
Troubleshooting a Wet Storage Array. . . . . . . . . 269
Troubleshooting a Damaged Array . . . . . . . . . . 270
Troubleshooting RAID Controller Modules . . . . . . 271
Conditions. . . . . . . . . . . . . . . . . . . . . 271
Invalid Storage Array. . . . . . . . . . . . . . . 271
ECC Errors. . . . . . . . . . . . . . . . . . . . . 271
PCI Errors . . . . . . . . . . . . . . . . . . . . . 272
book.book Page 16 Thursday, December 9, 2010 3:20 PM