Backups policy

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Backup policies of the shared areas of DreamsLab cluster[edit]

The backup system of the shared areas is based on a joint mechanism of snapshots and copy. The directory that will be saved are the following:

/home and its sub-directories

/data and its sub-directories

/cm/shared and its sub-directories

Snapshots[edit]

This procedure provides one snapshot of these areas for each day of the last 2 weeks. The snapshot will be done at 00:00 of each day. At 00:00 the oldest snapshot is replaced with the newer one.

Backup[edit]

Every Saturday, the last snapshot is fully copied to another disk to prevent disasters resulting from simultaneous breaking of several disks and to ensure a file history with weekly granularity of at last 2 months.

Recovery[edit]

The recovery of accidentally deleted files can be done on request by the HPC staff. Of course the recovered files will be the one saved at 00:00 during the snapshot.