Red Hat GLOBAL FILE SYSTEM 4.7, Manual

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Requirement Description
When determining the size of your file system, you should
consider your recovery needs. Running the
fsck
command on the file system can take a long time and
consume a large amount of memory. Additionally, in the
event of a disk or disk-subsytem failure, recovery time is
limited by the speed of your backup media.
Table 2.3. Fibre Channel Storage Device Requirements
6. Network Power Switches
You can fence GFS nodes with power switches and fencing agents available with Red Hat
Cluster Suite. For more information about fencing with network power switches, refer to
Configuring and Managing a Red Hat Cluster.
7. Console Access
Make sure that you have console access to each GFS node. Console access to each node
ensures that you can monitor nodes and troubleshoot problems.
8. Installing GFS
Installing GFS consists of installing Red Hat GFS RPMs on nodes in a Red Hat cluster. Before
installing the RPMs, make sure of the following:
• The cluster nodes meet the system requirements described in this chapter.
• You have noted the key characteristics of your GFS configuration (refer to Section 4, “Before
Setting Up GFS” ).
• The correct Red Hat Cluster Suite software is installed in the cluster.
For information on installing RPMS for Red Hat Cluster Suite and Red Hat GFS, see
Configuring and Managing a Red Hat Cluster. If you have already installed the appropriate Red
Hat Cluster Suite RPMs, follow the procedures that pertain to installing the Red Hat GFS RPMs.
Network Power Switches
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