Installation guide

Chapter 4. Managing GFS
This chapter describes the tasks and commands for managing GFS and consists of the follow-
ing sections:
• Section 1, “Making a File System”
• Section 2, “Mounting a File System”
• Section 3, “Unmounting a File System”
• Section 4, “GFS Quota Management”
• Section 5, “Growing a File System”
• Section 6, “Adding Journals to a File System”
• Section 7, “Direct I/O”
• Section 8, “Data Journaling”
• Section 9, “Configuring atime Updates”
• Section 10, “Suspending Activity on a File System”
• Section 11, “Displaying Extended GFS Information and Statistics”
• Section 12, “Repairing a File System”
• Section 13, “Context-Dependent Path Names”
1. Making a File System
Once a cluster is set up and running, you can create a GFS file system with the gfs_mkfs com-
mand. A file system is created on an activated CLVM volume.The following information is re-
quired to run the gfs_mkfs command:
• Lock protocol/module name (for example, lock_dlm)
• Cluster name
• Number of journals (one journal required for each node that may be mounting the file sys-
tem)
Usage
gfs_mkfs -p LockProtoName -t LockTableName -j Number BlockDevice
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