Recovering from disk problems using boot media options

About this section

This section provides information about options on the system boot diskette or compact flash PC-card that are useful for resolving disk problems. See Booting from the system boot media for information about the media.

Using various disk maintenance options on the system boot media

You can use Option 5, "Maintenance mode boot," on the system boot diskette or compact flash PC-card for troubleshooting hardware or configuration problems related to disks. For a list of all commands available with Option 5 and their descriptions, enter the following at the CLI prompt:

*> disk ?

The following output is displayed on your screen:

usage: disk <options>

Options are:

fail   <disk_name>	  - fail a file system disk

remove <disk_name>	  - remove a spare disk

swap	  - prepare (quiet) bus for swap

unswap - undo disk swap and resume service

scrub  { start | stop }	  - start or stop disk scrubbing

unfail <disk_name>	  - make a failed disk a spare again

unbypass <disk_name>	  - unbypass a bypassed disk

bypass <disk_name>	  - bypass an unbypassed disk

rescan	  - rescan the disks

suspend <disk_name>	  - suspend I/O to a disk

resume <disk_name>	  - resume I/O to a disk

Note
Before booting the NetCache appliance in maintenance mode, call Network Appliance Technical Support for instructions.

Exiting maintenance mode

You must power cycle the NetCache appliance to exit maintenance mode.