.TH "BLKDEACTIVATE" "8" "LVM TOOLS #VERSION#" "Red Hat, Inc" "\""
.SH "NAME"
blkdeactivate \(em utility to deactivate block devices
.SH SYNOPSIS
.B blkdeactivate
.RB [ -d \  \fIdm_options\fP ]
.RB [ -e ]
.RB [ -h ]
.RB [ -l \  \fIlvm_options\fP ]
.RB [ -m \  \fImpath_options\fP ]
.RB [ -u ]
.RB [ -v ]
.RI [ device ]
.SH DESCRIPTION
The blkdeactivate utility deactivates block devices. For mounted
block devices, it attempts to unmount it automatically before
trying to deactivate. The utility currently supports
device-mapper devices (DM), including LVM volumes and
software RAID MD devices. LVM volumes are handled directly
using the \fBlvm\fP(8) command, the rest of device-mapper
based devices are handled using the \fBdmsetup\fP(8) command.
MD devices are handled using the \fBmdadm\fP(8) command.
.SH OPTIONS
.TP
.BR -d ", " --dmoption \ \fIdm_options\fP
Comma separated list of device-mapper specific options.
Accepted \fBdmsetup\fP(8) options are:
.RS
.IP \fIretry\fP
Retry removal several times in case of failure.
.IP \fIforce\fP
Force device removal.
.RE
.TP
.BR -e ", " --errors
Show errors reported from tools called by \fBblkdeactivate\fP. Without this
option, any error messages from these external tools are suppressed and the
\fBblkdeactivate\fP itself provides only a summary message to indicate
the device was skipped.
.TP
.BR -h ", " --help
Display the help text.
.TP
.BR -l ", " --lvmoption \ \fIlvm_options\fP
Comma-separated list of LVM specific options:
.RS
.IP \fIretry\fP
Retry removal several times in case of failure.
.IP \fIwholevg\fP
Deactivate the whole LVM Volume Group when processing a Logical Volume.
Deactivating the Volume Group as a whole is quicker than deactivating
each Logical Volume separately.
.RE
.TP
.BR -m ", " --mpathoption \ \fImpath_options\fP
Comma-separated list of device-mapper multipath specific options:
.RS
.IP \fIdisablequeueing\fP
Disable queueing on all multipath devices before deactivation.
This avoids a situation where blkdeactivate may end up waiting if
all the paths are unavailable for any underlying device-mapper multipath
device.
.RE
.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. Use --vv for even more verbose mode.
.SH EXAMPLES
.
Deactivate all supported block devices found in the system, skipping mounted
devices.
.BR
#
.B blkdeactivate
.BR
.P
Deactivate all supported block devices found in the system, unmounting any
mounted devices first, if possible.
.BR
#
.B blkdeactivate -u
.BR
.P
Deactivate the device /dev/vg/lvol0 together with all its holders, unmounting 
any mounted devices first, if possible.
.BR
#
.B blkdeactivate -u /dev/vg/lvol0
.BR
.P
Deactivate all supported block devices found in the system. If the deactivation
of a device-mapper device fails, retry it. Deactivate the whole
Volume Group at once when processing an LVM Logical Volume.
.BR
#
.B blkdeactivate -u -d retry -l wholevg
.BR
.P
Deactivate all supported block devices found in the system. If the deactivation
of a device-mapper device fails, retry it and force removal.
.BR
#
.B blkdeactivate -d force,retry
.
.SH SEE ALSO
.BR dmsetup (8),
.BR lsblk (8),
.BR lvm (8),
.BR mdadm (8),
.BR multipathd (8),
.BR umount (8)