Mounting A File System - Red Hat GFS 6.0 Administrator's Manual

Chapter 9. Managing GFS
Flag Parameter
BlockSize
-b
-D
-h
MegaBytes
-J
Number
-j
-P
LockProtoName
-p
-O
-q
MegaBytes
-r
Blocks
-s
LockTableName
-t
-V
Table 9-1. Command Options:

9.2. Mounting a File System

Before you can mount a GFS file system, the file system must exist (refer to
Section 9.1 Making a File System), the pool volume where the file system exists must be
activated, and the supporting clustering and locking systems must be started (refer to
Description
Sets the file system block size to BlockSize.
Default block size is 4096 bytes.
Enables debugging output.
Help. Displays available options, then exits.
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.
Tells the
device is a pool. The
the pool about its layout. The
and
-J
Specifies the name of the locking protocol to use.
Recognized cluster-locking protocols include:
LOCK_GULM — The standard GFS locking
module.
LOCK_NOLOCK — May be used when GFS is
acting 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:FSName.
ClusterName is set in the
(
cluster.ccs:cluster/name
FSName, the file system name, can be 1 to 16
characters in length, and the name must be unique
among all file systems in the cluster.
Displays command version information, then exits.
gfs_mkfs
command. One journal is required for
command that the underlying
gfs_mkfs
gfs_mkfs
flags.
command from asking for
gfs_mkfs
command then asks
flag overrides the
-p
file
cluster.ccs
).
91
-j