Red Hat GLOBAL FILE SYSTEM 4.5 Manual page 29

Complete Options
Table 4.1, "Command Options:
parameters).
Flag Parameter
-b BlockSize
-D
-h
-J MegaBytes
-j Number
-p LockProtoName
-O
-q
-r MegaBytes
-s Blocks
-t LockTableName
" describes the
gfs_mkfs
Description
Sets the file-system block size to
Default block size is 4096 bytes.
Enables debugging output.
Help. Displays available options.
Specifies the size of the journal in megabytes.
Default journal size is 128 megabytes. The
minimum size is 32 megabytes.
Specifies the number of journals to be created by
the
gfs_mkfs
each node that mounts the file system.
Note: More journals than are needed can be
specified at creation time to allow for future
expansion.
Specifies the name of the locking protocol to use.
Recognized cluster-locking protocols include:
lock_dlm
lock_gulm
earlier versions of GFS.
lock_nolock
as a local file system (one node only).
Prevents the
confirmation before writing the file system.
Quiet. Do not display anything.
Specifies the size of the resource groups in
megabytes. Default resource group size is 256
megabytes.
Specifies the journal-segment size in file-system
blocks.
This parameter has two parts separated by a colon
(no spaces) as follows:
ClusterName
which the GFS file system is being created. The
cluster name is set in the
/etc/cluster/cluster.conf
Configuration Tool and displayed at the Cluster
Status Tool in the Red Hat Cluster Suite cluster
command options (flags and
gfs_mkfs
command. One journal is required for
— The standard locking module.
— The locking module compatible with
— May be used when GFS is acting
command from asking for
gfs_mkfs
ClusterName:FSName
is the name of the Red Hat cluster for
file via the Cluster
Complete Options
.
BlockSize
.
17