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ggatel(8) [freebsd man page]

GGATEL(8)						    BSD System Manager's Manual 						 GGATEL(8)

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 <>. BSD
April 2, 2011 BSD

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GCONCAT(8)						    BSD System Manager's Manual 						GCONCAT(8)

gconcat -- disk concatenation control utility SYNOPSIS
gconcat create [-v] name prov ... gconcat destroy [-fv] name ... gconcat label [-hv] name prov ... gconcat stop [-fv] name ... gconcat clear [-v] prov ... gconcat dump prov ... gconcat list gconcat status gconcat load gconcat unload DESCRIPTION
The gconcat utility is used for device concatenation configuration. The concatenation can be configured using two different methods: ``manual'' or ``automatic''. When using the ``manual'' method, no metadata are stored on the devices, so the concatenated device has to be configured by hand every time it is needed. The ``automatic'' method uses on-disk metadata to detect devices. Once devices are labeled, they will be automatically detected and configured. The first argument to gconcat indicates an action to be performed: create Concatenate the given devices with specified name. This is the ``manual'' method. The kernel module geom_concat.ko will be loaded if it is not loaded already. label Concatenate the given devices with the specified name. This is the ``automatic'' method, where metadata are stored in every device's last sector. The kernel module geom_concat.ko will be loaded if it is not loaded already. stop Turn off existing concatenate device by its name. This command does not touch on-disk metadata! destroy Same as stop. clear Clear metadata on the given devices. dump Dump metadata stored on the given devices. 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 concatenated device. -h Hardcode providers' names in metadata. -v Be more verbose. SYSCTL VARIABLES
The following sysctl(8) variables can be used to control the behavior of the CONCAT GEOM class. The default value is shown next to each variable. kern.geom.concat.debug: 0 Debug level of the CONCAT GEOM class. This can be set to a number between 0 and 3 inclusive. If set to 0 minimal debug information is printed, and if set to 3 the maximum amount of debug information is printed. EXIT STATUS
Exit status is 0 on success, and 1 if the command fails. EXAMPLES
The following example shows how to configure four disks for automatic concatenation, create a file system on it, and mount it: gconcat label -v data /dev/da0 /dev/da1 /dev/da2 /dev/da3 newfs /dev/concat/data mount /dev/concat/data /mnt [...] umount /mnt gconcat stop data gconcat unload Configure concatenated provider on one disk only. Create file system. Add two more disks and extend existing file system. gconcat label data /dev/da0 newfs /dev/concat/data gconcat label data /dev/da0 /dev/da1 /dev/da2 growfs /dev/concat/data SEE ALSO
geom(4), loader.conf(5), geom(8), growfs(8), gvinum(8), mount(8), newfs(8), sysctl(8), umount(8) HISTORY
The gconcat utility appeared in FreeBSD 5.3. AUTHORS
Pawel Jakub Dawidek <> BSD
May 21, 2004 BSD
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