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velero/pkg/exposer
Tiger Kaovilai e276970646 Note why Case 2 storages require inherited Retain, not just permit it
For a Case 2 driver (design/block-data-mover/block-data-mover.md), such
as Ceph RBD, rbd snap diff needs the base and target snapshots in the
same clone chain. Delete destroys the base as soon as the backup
completes, so the next incremental's delta query fails and degrades to
an allocated-blocks backup (or a full whole-device transfer without
that fix). Inheriting Retain there isn't an optional nicety, it's what
makes incrementals possible at all.

Signed-off-by: Tiger Kaovilai <tkaovila@redhat.com>
2026-08-27 12:57:20 -04:00
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2025-10-22 19:11:56 +08:00
2025-07-22 15:56:04 +08:00