xref: /freebsd/sys/contrib/openzfs/man/man8/zpool-remove.8 (revision c03c5b1c80914ec656fbee84539355d1fad68bf9)
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29eda14cbcSMatt Macy.Dd August 9, 2019
30eda14cbcSMatt Macy.Dt ZPOOL-REMOVE 8
31eda14cbcSMatt Macy.Os
32eda14cbcSMatt Macy.Sh NAME
337877fdebSMatt Macy.Nm zpool-remove
3416038816SMartin Matuska.Nd remove devices from ZFS storage pool
35eda14cbcSMatt Macy.Sh SYNOPSIS
367877fdebSMatt Macy.Nm zpool
37eda14cbcSMatt Macy.Cm remove
38eda14cbcSMatt Macy.Op Fl npw
3916038816SMartin Matuska.Ar pool Ar device Ns …
407877fdebSMatt Macy.Nm zpool
41eda14cbcSMatt Macy.Cm remove
42eda14cbcSMatt Macy.Fl s
43eda14cbcSMatt Macy.Ar pool
44eda14cbcSMatt Macy.Sh DESCRIPTION
45eda14cbcSMatt Macy.Bl -tag -width Ds
46eda14cbcSMatt Macy.It Xo
477877fdebSMatt Macy.Nm zpool
48eda14cbcSMatt Macy.Cm remove
49eda14cbcSMatt Macy.Op Fl npw
5016038816SMartin Matuska.Ar pool Ar device Ns …
51eda14cbcSMatt Macy.Xc
52eda14cbcSMatt MacyRemoves the specified device from the pool.
53eda14cbcSMatt MacyThis command supports removing hot spare, cache, log, and both mirrored and
54eda14cbcSMatt Macynon-redundant primary top-level vdevs, including dedup and special vdevs.
5521b492edSMartin Matuska.Pp
5621b492edSMartin MatuskaTop-level vdevs can only be removed if the primary pool storage does not contain
5721b492edSMartin Matuskaa top-level raidz vdev, all top-level vdevs have the same sector size, and the
5821b492edSMartin Matuskakeys for all encrypted datasets are loaded.
5916038816SMartin Matuska.Pp
60eda14cbcSMatt MacyRemoving a top-level vdev reduces the total amount of space in the storage pool.
61eda14cbcSMatt MacyThe specified device will be evacuated by copying all allocated space from it to
62eda14cbcSMatt Macythe other devices in the pool.
63eda14cbcSMatt MacyIn this case, the
64eda14cbcSMatt Macy.Nm zpool Cm remove
65eda14cbcSMatt Macycommand initiates the removal and returns, while the evacuation continues in
66eda14cbcSMatt Macythe background.
67eda14cbcSMatt MacyThe removal progress can be monitored with
68eda14cbcSMatt Macy.Nm zpool Cm status .
69*c03c5b1cSMartin MatuskaIf an I/O error is encountered during the removal process it will be cancelled.
7016038816SMartin MatuskaThe
71eda14cbcSMatt Macy.Sy device_removal
72eda14cbcSMatt Macyfeature flag must be enabled to remove a top-level vdev, see
733ff01b23SMartin Matuska.Xr zpool-features 7 .
74eda14cbcSMatt Macy.Pp
75eda14cbcSMatt MacyA mirrored top-level device (log or data) can be removed by specifying the top-level mirror for the
76eda14cbcSMatt Macysame.
77eda14cbcSMatt MacyNon-log devices or data devices that are part of a mirrored configuration can be removed using
78eda14cbcSMatt Macythe
79eda14cbcSMatt Macy.Nm zpool Cm detach
80eda14cbcSMatt Macycommand.
81eda14cbcSMatt Macy.Bl -tag -width Ds
82eda14cbcSMatt Macy.It Fl n
8316038816SMartin MatuskaDo not actually perform the removal
8416038816SMartin Matuska.Pq Qq No-op .
85eda14cbcSMatt MacyInstead, print the estimated amount of memory that will be used by the
86eda14cbcSMatt Macymapping table after the removal completes.
87eda14cbcSMatt MacyThis is nonzero only for top-level vdevs.
88eda14cbcSMatt Macy.El
89eda14cbcSMatt Macy.Bl -tag -width Ds
90eda14cbcSMatt Macy.It Fl p
91eda14cbcSMatt MacyUsed in conjunction with the
92eda14cbcSMatt Macy.Fl n
93eda14cbcSMatt Macyflag, displays numbers as parsable (exact) values.
94eda14cbcSMatt Macy.It Fl w
95eda14cbcSMatt MacyWaits until the removal has completed before returning.
96eda14cbcSMatt Macy.El
97eda14cbcSMatt Macy.It Xo
987877fdebSMatt Macy.Nm zpool
99eda14cbcSMatt Macy.Cm remove
100eda14cbcSMatt Macy.Fl s
101eda14cbcSMatt Macy.Ar pool
102eda14cbcSMatt Macy.Xc
103eda14cbcSMatt MacyStops and cancels an in-progress removal of a top-level vdev.
104eda14cbcSMatt Macy.El
105eda14cbcSMatt Macy.Sh SEE ALSO
106eda14cbcSMatt Macy.Xr zpool-add 8 ,
107eda14cbcSMatt Macy.Xr zpool-detach 8 ,
108eda14cbcSMatt Macy.Xr zpool-labelclear 8 ,
10916038816SMartin Matuska.Xr zpool-offline 8 ,
110eda14cbcSMatt Macy.Xr zpool-replace 8 ,
111eda14cbcSMatt Macy.Xr zpool-split 8
112