Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Administering a System: Managing Disks and Files

Restoring Your Data

Chapter 6 697

• A list of ﬁles you need to restore

• The media on which the data resides

• The location on your system to restore the ﬁles (original location or

relative to some other location)

• The device ﬁle corresponding to the backup device used for restoring

the ﬁles

Restoring Your Data Using SAM

You can use SAM or HP-UX commands to restore data. Generally, SAM

is simpler than HP-UX commands. If your backup was created by the

fbackup command (which SAM uses), you can use SAM or the frecover

command to restore the ﬁles from your backup.

Restoring Your Data Using HP-UX Commands

The command restores backup ﬁles made using the fbackup utility. If

your ﬁles were not created with fbackup, you will need to use another

utility (see Choosing the Backup and Recovery Utility).

To restore ﬁles from backups using frecover:

1. Ensure that you have superuser capabilities.

2. Ensure that ﬁles you intend to restore are not being accessed. The

frecover command will not restore ﬁles that are active (open) or

locked.

3. Verify that the backup device is properly connected.

4. Verify that the device is turned on.

5. Ensure that the device is loaded with the appropriate backup tape.

6. Restore ﬁles using the frecover command.

The -r option to the frecover command is generally used for recovering

all ﬁles from your backup; the -x option is used for restoring individual

ﬁles to your system. For complete details, see frecover (1M).

Restoring Files that are NFS Mounted

When restoring ﬁles that are NFS mounted to your system, frecover

can only restore those ﬁles having “other user” write permission. To

ensure the correct permissions, log in as superuser on the NFS ﬁle server