User's Manual

Troubleshooting 281
17
Troubleshooting
This section contains troubleshooting procedures for common situations as
well as for specific problems.
Common Troubleshooting Procedures
This section describes commands and procedures that can be used in
troubleshooting. Topics covered include:
• Cables Attached Correctly
• System Requirements
• Drivers and Firmware
• Isolate Hardware Problems
• Rescan to Update Information on SCSI Controllers
• Replacing a Failed Disk
• Recovering from Removing the Wrong Physical Disk
• Resolving Microsoft Windows Upgrade Problems
Cables Attached Correctly
Verify that the power-supply cord and adapter cables are attached correctly. If
the system is having trouble with read and write operations to a particular
virtual disk or non-RAID physical disk (if the system hangs, for example),
then make sure that the cables attached to the corresponding enclosure or
backplane are secure. If the connection is secure but the problem persists, you
may need to replace a cable. Also see Isolate Hardware Problems.
On SAS controllers, you should verify that the cable configuration is valid.
Refer to the SAS hardware documentation for valid cable configurations. If
the cable configuration is invalid, you may receive alerts 2182 or 2356.
For information on Alert Messages, see the Dell OpenManage Server
Administrator Messages Reference Guide at support.dell.com/manuals.