Manual Pages  — GEOM

The geom utility is used to control various GEOM classes. A class has to be aware of geom(8) communication methods, but there are also some standard commands which can be used for existing geom(8) unaware classes. Here is the list of standard commands:

help	List all available commands for the given class.
list	Print detailed information (within the given class) about all geoms (if no additional arguments were specified) or the given geoms. This command is only available if the given class exists in the kernel. Additional options include:
-a
	Print information for geoms without providers.

status
	Print general information (within the given class) about all geoms (if no additional arguments were specified) or the given geoms. This command is only available if the given class exists in the kernel. Additional options include:
-a
	When used with -g, print status for geoms without providers.
-g
	Report statuses for geoms instead of providers.
-s
	Produce script-friendly output.

load	Load the kernel module that implements the given class. This command is only available if the class does not yet exist in the kernel and the file geom_<class > .ko can be found in one of the directories specified in kern.module_path sysctl.
unload
	Unload the kernel module which implements the given class. This command is only available if the given class is loaded as a kernel module.

Additional options include:

-p provider-name
	Print detailed information about the geom which provides provider-name.
-t
	Display geoms hierarchy as a tree.

Class-specific commands are implemented as shared libraries which are stored in /lib/geom/ directory and are loaded via dlopen(3) function when the class name is known. When a class-specific shared library exists, a direct utility should also be available under the name of g.

Currently available classes which are aware of geom(8):

• CACHE
• CONCAT
• ELI
• JOURNAL
• LABEL
• MIRROR
• MOUNTVER
• MULTIPATH
• NOP
• PART
• RAID
• RAID3
• SCHED
• SHSEC
• STRIPE
• VIRSTOR

geom stripe label -v -s 65536 data /dev/da0 /dev/da1 /dev/da2
or:
gstripe label -v -s 65536 data /dev/da0 /dev/da1 /dev/da2

geom disk list

geom md unload

libgeom(3), geom(4), gcache(8), gconcat(8), geli(8), gjournal(8), glabel(8), gmirror(8), gmountver(8), gmultipath(8), gnop(8), gpart(8), graid3(8), gsched(8), gshsec(8), gstripe(8), gvirstor(8)