Dell 720N Laptop User Manual


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Troubleshooting 18-9
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Maintenance mode enables you to perform the following operations to troubleshoot
disk problems:
Obtain detailed device information for each disk with the
disk_list
command.
Check access to a particular disk with the
disk_check
command.
Erase a disk label with the
disk_erase_label
command.
NOTE: For information about Maintenance mode, see Booting From System Boot
Diskette.
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The
disk_list
command displays detailed device information for each disk on the
system, such as drive type, and firmware revision level.
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The
disk_check
command checks access to a particular disk, issuing read
requests to the disk. The disk is active for approximately 15 seconds. During this time,
you can watch the disks activity LED to verify that the disk is accessed.
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The
disk_erase_label
command erases a disk label on the specified disk drive.
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disk_erase_label
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Typically, use this command to remove an old RAID label on a previously used disk
that you are adding to an existing RAID group. For example, use this command to
erase the disk label when you move a disk from one filer to another.
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