.TH "BLKDEACTIVATE" "8" "LVM TOOLS #VERSION#" "Red Hat, Inc" "\""
.SH "NAME"
blkdeactivate \(em utility to deactivate block devices
.SH SYNOPSIS
.B blkdeactivate
.RI [ options ]
.RI [ device... ]
.sp
.SH DESCRIPTION
blkdeactivate utility deactivates block devices. If a device
is mounted, the utility can unmount it automatically before
trying to deactivate. The utility currently supports
\fIdevice-mapper\fP devices, including \fILVM\fP volumes.
LVM volumes are handled directly using the \fIlvm\fP command.
Other device-mapper based devices are handled using the
\fIdmsetup\fP command.
.SH OPTIONS
.TP
.BR \-e ", " \-\-errors
Show errors reported from tools called by blkdeactivate.
Without this option, any error messages from these external tools
are suppressed and the blkdeactivate itself provides only a summary
message about device being skipped or not.
.TP
.BR \-h ", " \-\-help
Display the help text.
.TP
.BR \-u ", " \-\-umount
Unmount a mounted device before trying to deactivate it.
Without this option used, a device that is mounted is not deactivated.
.TP
.BR \-v ", " \-\-verbose
Run in verbose mode.
.TP
.BR \-d ", " \-\-dmoption " " \fIdm_options
Comma separated list of device-mapper specific options.
.TP
.BR \-l ", " \-\-lvmoption " " \fIlvm_options
Comma separated list of LVM specific options.
.SH DM_OPTIONS
.TP
.B retry
Retry removal several times in case of failure.
.TP
.B force
Force device removal. See \fBdmsetup\fP(8) for more information.
.SH LVM_OPTIONS
.TP
.B retry
Retry removal several times in case of failure.
.TP
.B wholevg
Deactivate the whole LVM Volume Group when processing a Logical Volume.
Deactivating Volume Group as a whole takes less time than deactivating
each Logical Volume separately.

.SH EXAMPLES
.sp
Deactivate all supported block devices found in the system. If a device
is mounted, skip its deactivation.
.sp
.B blkdeactivate

Deactivate all supported block devices found in the system. If a device
is mounted, unmount it first if possible.
.sp
.B blkdeactivate \-u

Deactivate supplied device together with all its holders. If any of the
devices processed is mounted, unmount it first if possible.
.sp
.B blkdeactivate \-u /dev/vg/lvol0

Deactivate all supported block devices found in the system. Retry deactivation
of device-mapper devices in case the deactivation fails. Deactivate the whole
Volume Group at once when processing an LVM Logical Volume.
.sp
.B blkdeactivate \-u \-d retry \-l wholevg

Deactivate all supported block devices found in the system. Retry deactivation
of device-mapper devices in case the deactivation fails and force removal.
.sp
.B blkdeactivate \-d force,retry

.SH SEE ALSO
.BR lsblk (8)
.BR umount (8)
.BR dmsetup (8)
.BR lvm (8)