Grandfather-Father-Son (GFS) Rotation media pools are based on basic media pooling architecture.
GFS Rotation jobs use three media pools: Daily, Weekly, and Monthly, which are based on the information you enter in the Media Pool Name Prefix field when submitting the job.
When a GFS Rotation job runs, Arcserve Backup automatically formats and names your media according to the backup type, media pool, and date using the following syntax:
(tipo backup)-(prefisso del pool di supporti definito dall'utente)-(giorno della settimana)-(data)
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Where.. |
Is… |
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tipo backup: |
F - full backup A - all daily backups (full, incremental, and differential) when you use the Media Maximization option (enabled by default) and enable the Append Media option. For more information on the Media Maximization option, see the section Media Maximization in GFS Rotation Jobs. |
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user-defined media pool prefix |
Il nome assegnato dall'utente al pool di supporti per lo schema di rotazione GFS. |
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day of the week |
l'abbreviazione del giorno della settimana in cui è stato eseguito il processo. |
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Data |
La data in cui il backup è stato eseguito in formato mm/gg/aa. |
This media naming convention allows you to easily identify backup media. For example, the media used for the first full backup in your rotation scheme will have the following name: F TP MON 11/1/05.
Nota: Arcserve Backup prevents you from using the underscore character ( _ ) and the hyphen character ( - ) when specifying Media Pool names.
Five-day rotation schemes have the following retention times for each media pool:
The following are the formulas used for calculating the number of media in the Save Sets and the retention times for the GFS media pools:
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