Managing HP Serviceguard for Linux, Seventh Edition, July 2007

Building an HA Cluster Configuration

Setting up the Lock LUN

Chapter 5154

Setting up the Lock LUN

The lock LUN requires a partition of one cylinder of at least 100K

defined (via the fdisk command) as type Linux (83). You will need the

pathnames for the lock LUN as it is seen on each cluster node. On one

node, use the fdisk command to define a partition of 1 cylinder, type 83,

on this LUN. Here is an example:

Respond to the prompts as shown in the following table to set up the lock

LUN partition:

fdisk <Lock LUN Device File>

The following example of the fdisk dialog shows that the disk on the

device file /dev/sdc is set to Smart Array type partition, and appears as

follows:

fdisk /dev/sdc

Command (m for help): n

Partition number (1-4): 1

HEX code (type L to list codes): 83

Command (m for help): 1

Table 5-1 Changing Linux Partition Types

Prompt Response Action Performed

1. Command (m for help):

n Create new partition

2. Partition number (1-4):

1 Partition affected

3. Hex code (L to list codes):

83 Set partition to type to Linux,

default

Command (m for help):

1 Define first partition

Command (m for help):

1 Set size to 1 cylinder

Command (m for help): p Display partition data

Command (m for help):

w Write data to the partition

table