PRIMECLUSTER Global Disk Services Configuration and Administration Guide 4.1 (Solaris(TM) Operating System)

6.1 Backing Up and Restoring a System Disk

Mirroring system disks will protect the data when a physical disk on one side fails. However, data must be restored from backup data created in advance if the data is damaged due to a critical failure caused by multiple breakdown and so on or by an operation mistake.

This section discusses the method of backing up data on a system disk to tape and the method of restoring data back to the system disk from tape. You must follow different restore procedures depending on whether or not the system can be booted.

For a system disk that is mirrored by GDS, the system must be booted from a CD-ROM device for backup and restore.

Data backed up before system disk mirroring cannot be restored back to the mirrored system disk. If system disk mirroring is configured, perform system disk backup using this procedure.

For backing up and restoring volumes (e.g. /opt, /home) other than system volumes (/, /usr, /var, swap area) among volumes in the root class, see "Backing Up and Restoring Local Disks and Shared Disks."

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6.1.1 Backing Up

6.1.2 Restoring (When the System Can Be Booted)

6.1.3 Restoring (When the System Cannot Be Booted)