zpool-trim —
Initiate immediate TRIM operations for all free space in a
ZFS storage pool
zpool |
trim [-dw]
[-r rate]
[-c | -s]
pool [device...] |
zpool trim
[-dw] [-c |
-s] pool
[device...]- Initiates an immediate on-demand TRIM operation for all of the free space
in a pool. This operation informs the underlying storage devices of all
blocks in the pool which are no longer allocated and allows thinly
provisioned devices to reclaim the space.
A manual on-demand TRIM operation can be initiated
irrespective of the autotrim pool property setting.
See the documentation for the autotrim property above
for the types of vdev devices which can be trimmed.
-d
--secure- Causes a secure TRIM to be initiated. When performing a secure TRIM,
the device guarantees that data stored on the trimmed blocks has been
erased. This requires support from the device and is not supported by
all SSDs.
-r
--rate rate- Controls the rate at which the TRIM operation progresses. Without this
option TRIM is executed as quickly as possible. The rate, expressed in
bytes per second, is applied on a per-vdev basis and may be set
differently for each leaf vdev.
-c,
--cancel- Cancel trimming on the specified devices, or all eligible devices if
none are specified. If one or more target devices are invalid or are
not currently being trimmed, the command will fail and no cancellation
will occur on any device.
-s
--suspend- Suspend trimming on the specified devices, or all eligible devices if
none are specified. If one or more target devices are invalid or are
not currently being trimmed, the command will fail and no suspension
will occur on any device. Trimming can then be resumed by running
zpool trim with no
flags on the relevant target devices.
-w
--wait- Wait until the devices are done being trimmed before returning.