freebsd-nq/man/man8/zpool-get.8
Allan Jude 2a673e76a9
Vdev Properties Feature
Add properties, similar to pool properties, to each vdev.
This makes use of the existing per-vdev ZAP that was added as
part of device evacuation/removal.

A large number of read-only properties are exposed,
many of the members of struct vdev_t, that provide useful
statistics.

Adds support for read-only "removing" vdev property.
Adds the "allocating" property that defaults to "on" and
can be set to "off" to prevent future allocations from that
top-level vdev.

Supports user-defined vdev properties.
Includes support for properties.vdev in SYSFS.

Co-authored-by: Allan Jude <allan@klarasystems.com>
Co-authored-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes #11711
2021-11-30 07:46:25 -07:00

188 lines
4.4 KiB
Groff

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.Dd August 9, 2019
.Dt ZPOOL-GET 8
.Os
.
.Sh NAME
.Nm zpool-get
.Nd retrieve properties of ZFS storage pools
.Sh SYNOPSIS
.Nm zpool
.Cm get
.Op Fl Hp
.Op Fl o Ar field Ns Oo , Ns Ar field Oc Ns
.Sy all Ns | Ns Ar property Ns Oo , Ns Ar property Oc Ns
.Oo Ar pool Oc Ns
.
.Nm zpool
.Cm get
.Op Fl Hp
.Op Fl o Ar field Ns Oo , Ns Ar field Oc Ns
.Sy all Ns | Ns Ar property Ns Oo , Ns Ar property Oc Ns
.Ar pool
.Oo Sy all-vdevs Ns | Ns
.Ar vdev Oc Ns
.
.Nm zpool
.Cm set
.Ar property Ns = Ns Ar value
.Ar pool
.
.Nm zpool
.Cm set
.Ar property Ns = Ns Ar value
.Ar pool
.Ar vdev
.
.Sh DESCRIPTION
.Bl -tag -width Ds
.It Xo
.Nm zpool
.Cm get
.Op Fl Hp
.Op Fl o Ar field Ns Oo , Ns Ar field Oc Ns
.Sy all Ns | Ns Ar property Ns Oo , Ns Ar property Oc Ns
.Oo Ar pool Oc Ns
.Xc
Retrieves the given list of properties
.Po
or all properties if
.Sy all
is used
.Pc
for the specified storage pool(s).
These properties are displayed with the following fields:
.Bl -tag -compact -offset Ds -width "property"
.It Sy name
Name of storage pool.
.It Sy property
Property name.
.It Sy value
Property value.
.It Sy source
Property source, either
.Sy default No or Sy local .
.El
.Pp
See the
.Xr zpoolprops 7
manual page for more information on the available pool properties.
.Bl -tag -compact -offset Ds -width "-o field"
.It Fl H
Scripted mode.
Do not display headers, and separate fields by a single tab instead of arbitrary
space.
.It Fl o Ar field
A comma-separated list of columns to display, defaults to
.Sy name , Ns Sy property , Ns Sy value , Ns Sy source .
.It Fl p
Display numbers in parsable (exact) values.
.El
.It Xo
.Nm zpool
.Cm get
.Op Fl Hp
.Op Fl o Ar field Ns Oo , Ns Ar field Oc Ns
.Sy all Ns | Ns Ar property Ns Oo , Ns Ar property Oc Ns
.Ar pool
.Oo Sy all-vdevs Ns | Ns
.Ar vdev Oc Ns
.Xc
Retrieves the given list of properties
.Po
or all properties if
.Sy all
is used
.Pc
for the specified vdevs
.Po
or all vdevs if
.Sy all-vdevs
is used
.Pc
in the specified pool.
These properties are displayed with the following fields:
.Bl -tag -compact -offset Ds -width "property"
.It Sy name
Name of vdev.
.It Sy property
Property name.
.It Sy value
Property value.
.It Sy source
Property source, either
.Sy default No or Sy local .
.El
.Pp
See the
.Xr vdevprops 7
manual page for more information on the available pool properties.
.Bl -tag -compact -offset Ds -width "-o field"
.It Fl H
Scripted mode.
Do not display headers, and separate fields by a single tab instead of arbitrary
space.
.It Fl o Ar field
A comma-separated list of columns to display, defaults to
.Sy name , Ns Sy property , Ns Sy value , Ns Sy source .
.It Fl p
Display numbers in parsable (exact) values.
.El
.It Xo
.Nm zpool
.Cm set
.Ar property Ns = Ns Ar value
.Ar pool
.Xc
Sets the given property on the specified pool.
See the
.Xr zpoolprops 7
manual page for more information on what properties can be set and acceptable
values.
.It Xo
.Nm zpool
.Cm set
.Ar property Ns = Ns Ar value
.Ar pool
.Ar vdev
.Xc
Sets the given property on the specified vdev in the specified pool.
See the
.Xr vdevprops 7
manual page for more information on what properties can be set and acceptable
values.
.El
.
.Sh SEE ALSO
.Xr vdevprops 7 ,
.Xr zpool-features 7 ,
.Xr zpoolprops 7 ,
.Xr zpool-list 8