Owner's Manual

Start the O2CB service on all the nodes by typing:

/etc/init.d/o2cb start

On the

first node

, for a Fibre Channel cluster, create one partition on each of

the other two external storage devices with

fdisk

Create a primary partition for the entire device by typing:

fdisk /dev/emcpowerX

Ty p e

for help within the

fdisk

utility.

Verify that the new partition exists by typing:

cat /proc/partitions

If you do not observe the new partition, type:

sfdisk -R /dev/<device name>

NOTE: The following steps use the sample values:

• mount points:

/u01,/u02

, and

/u03

• labels:

u01,u02

u03

• Fibre Channel Storage devices:

emcpowera, emcpowerb

, and

emcpowerc

any one node

, format the external storage devices with 4 K block size, 128

K cluster size, and 4 node slots (node slots refer to the number of cluster

nodes) using the command line utility

mkfs.ocfs2

as follows:

ocr.dbf and Voting Disk

mkfs.ocfs2 -b 4K -C 128K -N 4 -L u01

/dev/emcpowera1

Database Files

mkfs.ocfs2 -b 4K -C 128K -N 4 -L u02

/dev/emcpowerb1

Flash Recovery Area

mkfs.ocfs2 -b 4K -C 128K -N 4 -L u03

/dev/emcpowerc1

NOTE: For more information about setting the format parameters of clusters, see

www.oss.oracle.com/projects/ocfs2/dist/documentation/ocfs2_faq.html.