Limitations and Considerations for GFS Cycles

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    Before configuring the GFS retention policy for a backup copy job, mind the following limitations and considerations:

    General Settings

    Mind the following for general settings of a backup copy job:

    Periodic Copy Mode

    If you want to use the periodic copy mode, mind the following:

    • If the backup copy interval is not enough to get the active full backup, the interval will be prolonged until the active full process is finished.
    • Veeam Backup & Replication creates a GFS full backup even if the GFS full backup creation is scheduled when the backup copy interval is not finished. On the day when the GFS full backup must be created, Veeam Backup & Replication shows a warning that the current backup copy interval will be completed, completes the interval, and starts a new one. The way how Veeam Backup & Replication behaves further depends on the selected backup copy GFS method:
    • In case of the synthetic full method, Veeam Backup & Replication first copies data for an incremental backup from the source backup repository and then, on the target backup repository, synthesizes the GFS full backup using this data and data of the already stored backup files.
    • In case of the active full method, Veeam Backup & Replication copies data for the GFS full backup from the source backup repository and creates the GFS full backup on the target backup repository.

    Changes in GFS Retention After Upgrading from Veeam Backup & Replication 10 to version 11

    In Veeam Backup & Replication version 11, the backup copy GFS retention settings are different from the settings in version 10. If you upgrade to Veeam Backup & Replication 11, all GFS retention settings of existing backup copy jobs are automatically switched to the new format with minimal changes:

    If the monthly GFS schedule was set to a period between the 3rd Monday and last Sunday, in version 11 the monthly GFS settings is changed to Last week.

    If in version 10 the yearly GFS schedule was set to the first-fourth Monday-Sunday of the year, in version 11 the schedule is changed to the first day of January.

    If the yearly GFS schedule was set to the last Monday-Sunday of the year, in version 11 the schedule is set to the first day of December.

    If in version 10 the quarterly GFS policy was enabled, in version 11 three additional months are added to the monthly GFS policy to compensate the quarterly full backups.

    If in version 10, the GFS policy was set to X monthly backups and Y quarterly backups. Then, in version 11, the retention policy is switched to store monthly backups for (X + 3Y) months.

    Important

    [For synthetic method] After you upgrade to Veeam Backup & Replication 11 or later, Veeam Backup & Replication starts creating new GFS points according to the new schedule and creates them on the scheduled days. Veeam Backup & Replication stops transforming the old GFS candidates (incremental restore points created on days when GFS was scheduled) into GFS restore points. This may lead to the loss of incremental restore points which were only GFS candidates before the upgrade.

    To avoid losing of GFS candidates, before the upgrade, make sure that all GFS candidates are transformed into GFS restore points. For more information on how restore points are transformed, see Synthetic Weekly Full Backups.

    It is better to schedule the upgrade right after the GFS restore points are created from all GFS candidates. You can also temporarily decrease the short-term retention to force the merge and transformation into GFS restore points.