Managing Serviceguard Eighteenth Edition, September 2010

3. Create the partition; for example (using partition.txt as input):

/usr/sbin/idisk -w -p -f partition.txt /dev/rdsk/c1t4d0

Or, on an HP-UX 11i v3 system using agile addressing (see “About Device File

Names (Device Special Files)” (page 106):

/usr/sbin/idisk -w -p -f partition.txt /dev/rdisk/disk12

NOTE: Device files for partitions cannot be cluster-wide DSFs (cDSFs). For more

information about cDSFs, see “About Cluster-wide Device Special Files (cDSFs)”

(page 135).

This will create three device files, for example

/dev/dsk/c1t4d0s1, /dev/dsk/c1t4d0s2, and /dev/dsk/c1t4d0s3

or:

/dev/disk/disk12_p1, /dev/disk/disk12_p2, and /dev/disk/disk12_p3

NOTE: The first partition, identified by the device file /dev/dsk/c1t4d0s1 or

/dev/disk/disk12_p1 in this example, is reserved by EFI and cannot be used

for any other purpose.

4. Create the device files on the other cluster nodes.

Use the command insf -e on each node. This will create device files

corresponding to the three partitions, though the names themselves may differ

from node to node depending on each node’s I/O configuration.

5. Define the lock LUN; see “Defining the Lock LUN”.

Defining the Lock LUN

Use cmquerycl -L to create a cluster configuration file that defines the lock LUN.

• If the pathname for the lock LUN is the same on all nodes, use a command such

as:

cmquerycl -C $SGCONF/config.ascii -L /dev/dsk/c0t1d1 -n

• If the pathname for the lock LUN is different on some nodes, you must specify the

path on each node; for example (all on one line):

cmquerycl -C $SGCONF/config.ascii -n <node1> -L

/dev/dsk/c0t1d1 -n <node2> -L /dev/dsk/c0t1d2

228 Building an HA Cluster Configuration