Dell 740N Manual

A SERVICE OF

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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.