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Add DDT prune command

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Requires the new 'flat' physical data which has the start
time for a class entry.

The amount to prune can be based on a target percentage of
the unique entries or based on the age (i.e., every entry
older than N days).

Sponsored-by: Klara, Inc.
Sponsored-by: iXsystems, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@klarasystems.com>
Closes #16277
This commit is contained in:
Don Brady
2024-06-17 22:35:18 +00:00
committed by Brian Behlendorf
parent 4a4f7b019f
commit d4d79451cb
21 changed files with 905 additions and 85 deletions
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include/libzfs_core.h
+3
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@@ -161,6 +161,9 @@ _LIBZFS_CORE_H int lzc_set_vdev_prop(const char *, nvlist_t *, nvlist_t **);
_LIBZFS_CORE_H int lzc_scrub(zfs_ioc_t, const char *, nvlist_t *, nvlist_t **);
_LIBZFS_CORE_H int lzc_ddt_prune(const char *, zpool_ddt_prune_unit_t,
uint64_t);
#ifdef __cplusplus
}
#endif