mirror_zfs/man/man8/zpool-ddtprune.8
Don Brady d4d79451cb Add DDT prune command
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
2024-09-04 14:17:02 -07:00

49 lines
1.5 KiB
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.Dd June 17, 2024
.Dt ZPOOL-DDTPRUNE 8
.Os
.
.Sh NAME
.Nm zpool-ddtprune
.Nd Prunes the oldest entries from the single reference dedup table(s)
.Sh SYNOPSIS
.Nm zpool
.Cm ddtprune
.Fl d Ar days | Fl p Ar percentage
.Ar pool
.Sh DESCRIPTION
This command prunes older unique entries from the dedup table.
As a complement to the dedup quota feature,
.Sy ddtprune
allows removal of older non-duplicate entries to make room for
newer duplicate entries.
.Pp
The amount to prune can be based on a target percentage of the unique entries
or based on the age (i.e., every unique entry older than N days).
.
.Sh SEE ALSO
.Xr zdb 8 ,
.Xr zpool-status 8