Veritas Volume Manager 4.1 Troubleshooting Guide (HP-UX 11i v3, February 2007)

Recovery from Boot Disk Failure

VERITAS Volume Manager (VxVM) protects systems from disk and other hardware

failures and helps you to recover from such events. This chapter describes recovery

procedures and provides information that help to prevent loss of data or system access

due to the failure of the boot (root) disk.

For information about recovering volumes and their data on non-boot disks, see

“Recovery from Hardware Failure” on page 1.

Note For additional information, see the HP documentation Web Site at

http://docs.hp.com. Click on Search This Site, search for Ignite-UX Administration

Guide, and select the link to the appropriate 11i version. For information on actions

to recover your system, select the section “System Recovery.” Pay particular

attention to the information contained in the subsection “Expert Recovery Using the

Core Media.”

Recovery by Booting from a VxVM Root Disk Mirror

If a failed primary boot disk is under VxVM control and is mirrored, follow these steps to

replace it:

1. Replace the failed boot disk. Depending on the system hardware, this may require

you to shut down and power off the system.

2. Boot the system from a mirror of the root disk, and use the vxrootmir command to

initialize and mirror the volumes on the new root disk:

# /etc/vx/bin/vxrootmir -v -b new_root_disk_access_name

The -b option sets the newly mirrored disk as the alternate boot disk in the NVRAM.

The -v option gives progress indications as each volume is being mirrored.