HP OpenVMS 8.x manual Getting Started, Mounting Devices, Performing the System Disk Backup

on a disk. Therefore, to avoid jeopardizing the integrity of your data in any way, HP recommends that you shut down the entire OpenVMS Cluster system before you back up your system disk.

E.4 Backing Up the System Disk

The following sections describe how to back up the system disk.

E.4.1 Getting Started

Before you back up the system disk, do the following:

1.In an OpenVMS Cluster environment, dismount the system disk from all systems in the cluster that have the disk mounted as a data disk (rather than as the system disk).

2.Shut down all systems booted from that disk.

3.Boot the operating system media. (For booting the OpenVMS I64 OE DVD, see Section A.6 (page 172).)

4.Choose the DCL option (8) on the menu. For example:

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You can install or upgrade the OpenVMS I64 operating system

or you can install or upgrade layered products that are included on the OpenVMS I64 distribution media (CD/DVD).

You can also execute DCL commands and procedures to perform "standalone" tasks, such as backing up the system disk.

Please choose one of the following:

1)Upgrade, install or reconfigure OpenVMS I64 Version 8.3-1H1

2)Display layered products that this procedure can install

3)Install or upgrade layered products

4)Show installed products

5)Reconfigure installed products

6)Remove installed products

7)Find, Install, or Undo patches; Show or Delete recovery data

8)Execute DCL commands and procedures

9)Shut down this system

Enter CHOICE or ? for help: (1/2/3/4/5/6/7/8/9/?) 8

5.At the triple dollar sign prompt ($$$), enter the SHOW DEVICES command.

6.Examine the list of devices to determine which device is the source drive (the system disk you want to back up) and which device is the target drive (the supported disk or tape device that will hold the backed up files).

E.4.2 Mounting Devices

After you determine the source drive and target drive, mount those devices (and any other output devices you plan to use) before you perform any backup operations. Enter the MOUNT commands in the following format:

$$$ MOUNT/OVERRIDE=IDENTIFICATION source-drive

$$$ MOUNT/FOREIGN target-drive

In these commands:

•source-driveis the name of the drive holding the system disk.

•target-driveis the name of the drive that will hold the backup files.

E.4.3 Performing the System Disk Backup

When the system disk and output devices are mounted, back up the system disk by entering the BACKUP command in the following format:

248 Backing Up and Restoring the System Disk