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docs: tape/restore: mention single snapshot restore 

what it is, how to use it and the caveats

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
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Dominik Csapak 2022-05-13 15:39:38 +02:00 committed by Thomas Lamprecht
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commit fca84a4b94
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docs/tape-backup.rst
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@ -831,6 +831,29 @@ data disk (datastore):
# proxmox-tape restore 9da37a55-aac7-4deb-91c6-482b3b675f30 mystore # proxmox-tape restore 9da37a55-aac7-4deb-91c6-482b3b675f30 mystore
Single Snapshot Restore
^^^^^^^^^^^^^^^^^^^^^^^
Sometimes it is not necessary to restore a whole media-set, but only some
specific snapshots from the tape. This can be achieved with the ``snapshots``
parameter:
.. code-block:: console
// proxmox-tape restore <media-set-uuid> <datastore> [<snapshot>]
# proxmox-tape restore 9da37a55-aac7-4deb-91c6-482b3b675f30 mystore sourcestore:host/hostname/2022-01-01T00:01:00Z
This first restores the snapshot to a temporary location, then restores the relevant
chunk archives, and finally restores the snapshot data to the target datastore.
The ``snapshot`` parameter can be given multiple times, so one can restore
multiple snapshots with one restore action.
.. NOTE:: When using the single snapshot restore, the tape must be traversed
more than once, which, if you restore many snapshots at once, can take longer
than restoring the whole datastore.
Update Inventory Update Inventory
~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~