Red Hat GFS 5.2.1 -, Administrator'S Manual

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30 Chapter 5. Using the Pool Volume Manager
5.5.1. Usage
pool_tool -c ConfigFile
ConfigFile
Specifies the file that defines the pool.
5.5.2. Example
In this example, the
pool0.cfg
file describes the new pool,
pool0
, created by the command.
pool_tool -c pool0.cfg
5.5.3. Comments
Multiple pools can be created with one
pool_tool
command by listing multiple pool configuration
files on the command line.
If no flag is specified in the
pool_tool
command, the function defaults to creating a pool (
-c
), with
the configuration file specified after the command.
5.6. Activating/Deactivating a Pool Volume
The
pool_assemble
command activates or deactivates pools on a node.
Note
The
pool_assemble
command must be run on every node that accesses shared pools; also, it must
be run each time a node reboots.
The
pool_assemble
command only activates pools from devices visible to the node (those listed in
/proc/partitions/
). Disk labels created by the
pool_tool
command are scanned to determine
which pools exist and, as a result, should be activated. The
pool_assemble
command also creates
device nodes in the
/dev/pool/
directory for devices it has activated.
5.6.1. Usage
Activating a Pool Volume
pool_assemble -a [ PoolName ]
PoolName
Specifies the pool to activate. More than one name can be listed. If no pool names are specified,
all pools visible to the system are activated.
Deactivating a Pool Volume
pool_assemble -r [ PoolName ]