1.2. Before Setting Up GFS2
- GFS2 nodes
- Determine which nodes in the cluster will mount the GFS2 file systems.
- Number of file systems
- Determine how many GFS2 file systems to create initially. (More file systems can be added later.)
- File system name
- Determine a unique name for each file system. The name must be unique for all
lock_dlmfile systems over the cluster. Each file system name is required in the form of a parameter variable. For example, this book uses file system names
mydata2in some example procedures.
- Determine the number of journals for your GFS2 file systems. One journal is required for each node that mounts a GFS2 file system. GFS2 allows you to add journals dynamically at a later point as additional servers mount a file system. For information on adding journals to a GFS2 file system, see Section 4.7, “Adding Journals to a File System”.
- Storage devices and partitions
- Determine the storage devices and partitions to be used for creating logical volumes (by means of CLVM) in the file systems.