Getting Started
This chapter describes procedures for initial setup of GFS and contains the following sections:
•
Section 1, “Prerequisite Tasks”
•
Section 2, “Initial Setup Tasks”
1. Prerequisite Tasks
Before setting up Red Hat GFS, make sure that you have noted the key characteristics of the
GFS nodes (refer to
Section 4, “Before Setting Up GFS”
). Also, make sure that the clocks on the
GFS nodes are synchronized. It is recommended that you use the Network Time Protocol (NTP)
software provided with your Red Hat Enterprise Linux distribution.
Note
The system clocks in GFS nodes must be within a few minutes of each other to
prevent unnecessary inode time-stamp updating. Unnecessary inode time-stamp
updating severely impacts cluster performance.
2. Initial Setup Tasks
Initial GFS setup consists of the following tasks:
1. Setting up logical volumes
2. Making a GFS files system
3. Mounting file systems
Follow these steps to set up GFS initially.
1. Using LVM, create a logical volume for each Red Hat GFS file system.
Note
You can use
init.d
scripts included with Red Hat Cluster Suite to automate
activating and deactivating logical volumes. For more information about
init.d
scripts, refer to Configuring and Managing a Red Hat Cluster.
Chapter 2.
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