Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 04-08-2006 Installation Manual page 295

The OCFS2 cluster must be online, because the format operation must first ensure
that the volume is not mounted on any node in the cluster.
3 Create and format the volume using one of the following methods:
• In EVMSGUI, go to the Volumes page, select Make a file system → OCFS2,
then specify the configuration settings.
• Use the mkfs.ocfs2 utility. For information about the syntax for this
command, refer to the mkfs.ocfs2 man page.
• In the ocfs2console, click Tasks → Format, select a device in the
Available Devices list that you want to use for your OCFS2 volume, specify
the configuration settings for the volume, then click OK to format the volume.
See the following table for recommended settings.
OCFS2 Pa- Description and Recommendation
rameter
Volume la- A descriptive name for the volume to make it uniquely identifi-
bel able when it is mounted on different nodes.
Use the tunefs.ocfs2 utility to modify the label as needed.
Cluster size Cluster size is the smallest unit of space allocated to a file to
hold the data.
Options are 4, 8, 16, 32, 64, 128, 256, 512, and 1024 KB.
Cluster size cannot be modified after the volume is formatted.
Oracle recommends a cluster size of 128 KB or larger for
database volumes. Oracle also recommends a cluster size of 32
or 64 KB for Oracle Home.
Number of The maximum number of nodes that can concurrently mount
node slots a volume. On mounting, OCFS2 creates separate system files,
such as the journals, for each of the nodes. Nodes that access
the volume can be a combination of little-endian architectures
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