gmountver(8) [freebsd man page]
GMOUNTVER(8) BSD System Manager's Manual GMOUNTVER(8) NAME
gmountver -- control utility for disk mount verification GEOM class SYNOPSIS
gmountver create [-v] dev ... gmountver destroy [-fv] prov ... gmountver list gmountver status [-s name] gmountver load [-v] gmountver unload [-v] DESCRIPTION
The gmountver utility is used to control the mount verification GEOM class. When configured, it passes all the I/O requests to the underly- ing provider. When the underlying provider disappears - for example because the disk device got disconnected - it queues all the I/O requests and waits for the provider to reappear. When that happens, it attaches to it and sends the queued requests. The first argument to gmountver indicates an action to be performed: create Cache the given devices with specified name. The kernel module geom_mountver.ko will be loaded if it is not loaded already. destroy Destroy name. list See geom(8). status See geom(8). load See geom(8). unload See geom(8). Additional options: -f Force the removal of the specified mountver device. -v Be more verbose. SYSCTL VARIABLES
The following sysctl(8) variables can be used to control the behavior of the MOUNTVER GEOM class. The default value is shown next to each variable. kern.geom.mountver.debug: 0 Debug level of the MOUNTVER GEOM class. This can be set to a number between 0 and 3 inclusive. If set to 0 minimal debug informa- tion is printed, and if set to 3 the maximum amount of debug information is printed. kern.geom.mountver.check_ident: 1 This can be set to 0 or 1. If set to 0, gmountver will reattach to the device even if the device reports a different disk ID. EXIT STATUS
Exit status is 0 on success, and 1 if the command fails. SEE ALSO
geom(4), geom(8) HISTORY
The gmountver utility appeared in FreeBSD 9.0. AUTHORS
Edward Tomasz Napierala <trasz@FreeBSD.org> BSD
January 27, 2015 BSD
Check Out this Related Man Page
GGATEL(8) BSD System Manager's Manual GGATEL(8) NAME
ggatel -- GEOM Gate local control utility SYNOPSIS
ggatel create [-v] [-o ro | wo | rw] [-s sectorsize] [-t timeout] [-u unit] path ggatel attach [-v] [-o ro | wo | rw] -u unit path ggatel destroy [-f] -u unit ggatel list [-v] [-u unit] DESCRIPTION
The ggatel utility is a local GEOM Gate class consumer. It can be used as a replacement for md(4) devices or as a ``GEOMificator'' for non GEOM-aware devices, but it was mainly created as an example on how to use and how to communicate with the GEOM Gate kernel module. Available commands: create Create a ggate provider related to the given regular file or device. attach Attach a worker process to an existing ggate provider. destroy Destroy the given ggate provider. list List ggate providers. Available options: -f Forcibly destroy ggate provider (cancels all pending requests). -o ro | wo | rw Specify permission to use when opening the file or device: read-only (ro), write-only (wo), or read-write (rw). Default is rw. -s sectorsize Sector size for ggate provider. If not specified, it is taken from device, or set to 512 bytes for files. -t timeout Number of seconds to wait before an I/O request will be canceled. 0 means no timeout. Default is 30. -u unit Unit number to use. -v Do not fork, run in foreground and print debug informations on standard output. path Path to a regular file or device. EXIT STATUS
Exit status is 0 on success, or 1 if the command fails. To get details about the failure, ggatel should be called with the -v option. EXAMPLES
``GEOMify'' the ``fd0'' device and use gbde(8) to encrypt data on a floppy. ggatel create -u 5 /dev/fd0 gbde init /dev/ggate5 gbde attach ggate5 newfs /dev/ggate5.bde mount /dev/ggate5.bde /secret cp /private/foo /secret/ umount /secret gbde detach ggate5 ggatel destroy -u 5 SEE ALSO
geom(4), gbde(8), ggatec(8), ggated(8), mount(8), newfs(8) AUTHORS
The ggatel utility as well as this manual page was written by Pawel Jakub Dawidek <pjd@FreeBSD.org>. BSD
April 2, 2011 BSD