[pbs-devel] [PATCH proxmox-backup 3/3] docs: add WORM tape documentation

Dominik Csapak d.csapak at proxmox.com
Thu Feb 23 12:59:02 CET 2023

a short section about how to use WORM tapes (since we currently don't
handle them differently than normal tapes)

Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
 docs/tape-backup.rst | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/docs/tape-backup.rst b/docs/tape-backup.rst
index fbc72b67..a3a62818 100644
--- a/docs/tape-backup.rst
+++ b/docs/tape-backup.rst
@@ -1050,6 +1050,21 @@ This command does the following:
 - unload the cleaning tape (to slot 3)
+WORM Tapes
+WORM (write once, read many) tapes are special cartridges that cannot be deleted
+or overwritten, which may be useful for legal or protection purposes.
+Since they cannot be overwritten or deleted, if you want to use them, you must
+use a media pool with a retention policy of `keep`, otherwise a backup job
+potentially fails when trying to erase or overwrite it.
+Proxmox Backup Server does not handle WORM tapes differently, so it is
+recommended to use a different naming scheme, use only seperate media pools
+and not mix WORM and non-WORM tapes in a media pool together (since it may
+lead to confusion about which tapes are not overwritable).
 Example Setups

More information about the pbs-devel mailing list