HP B6960-90078 manual Policymedia, Non, 104

Managing Media

Creating a Media Pool

If InitOnLoosePolicy is set to 1 (by default, it is set to

0)media that are unrecognized by Data Protector (new media) are automatically formatted. This policy is preferred if you want unattended backup to succeed, as it maximizes the number of media Data Protector can choose from.

Unformatted media first This is a modification of the Loose policy. If selected, this policy directs Data Protector to give preference to unknown media, even if unprotected media are available in the library. This is recommended if Data Protector is the only application using the library and you want to have even usage of all media.

Use free pool Directs Data Protector to search in the free pool for suitable media in addition to the regular pool. By default, this option is OFF.

See “Selecting Media for Backup” on page 120 for detailed information.

See the HP OpenView Storage Data Protector Concepts Guide for more information on free pools.

Media Usage Media usage policy controls how new backups are added to already used

Policymedia.

Appendable A backup session starts writing data to the space remaining on the last medium used in the previous backup session. Subsequent media needed in this session are written from the beginning of the tape, hence only unprotected or new tapes can be used. Data may be appended from any backup specification to any other backup specification. Appending media conserves media space but can add complexity to a restore operation, because one medium can contain data from several backup sessions.

Non-

Appendable A backup session writes data beginning at the first position on the first available medium for backup.

Appendable on incrementals only The first medium used in a backup session is appended to only if an incremental backup is performed. If several appendable media are available in the pool, the least recently written to

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