HPlogo Performing System Operation Tasks: 900 Series HP 3000 Computer Systems > Chapter 6 Copying Files to Tape

System Directory Backup

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The system directory keeps track of the accounts, groups, users, and files in your system. Nonsystem volume set directories keep track of the contents of nonsystem volumes. When you back up either type of volume, you should store its directory information so that you can rebuild your system from backup tapes in the event of an unexpected data loss.

To store system directory information

The DIRECTORY parameter of the STORE command allows you to back up the account structure and all HFS directories on system and/or nonsystem volume sets. You may then reload the account structure and HFS directories in the event of a system disaster by restoring them onto the system from the backup media. You have the added flexibility of backing up the directories of nonsystem volumes as a part of or as a separate entity from the system. This allows a nonsystem volume to become a separate reliable entity. System supervisor (OP) or system manager (SM) capability is required to use the DIRECTORY parameter.

To store directory information on system volumes, use the DIRECTORY parameter of the STORE command. For example:

   FILE T;DEV=TAPE

   STORE /;*T;DIRECTORY

To store nonsystem volume set directory information, use DIRECTORY and ONVS in the same command. For example:

   FILE T;DEV=TAPE

   STORE /;*T;ONVS=VOL_SET_A;DIRECTORY

The example below shows how to back up the system directory and all other files and a nonsystem volume set directory (NV1) and its files:

   FILE T;DEV=TAPE

   STORE /;*T;DIRECTORY;ONVS=MPEXL_SYSTEM_VOLUME_SET,NV1
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