Avago Technologies Syncro CS 9271-8i - Manual (Page 49)

LSI Corporation
- 49 -
Syncro CS 9271-8i Solution User Guide
October 2013 Chapter 3: Creating the Cluster
Creating the Cluster in SuSE Linux Enterprise Server (SLES)
3. Repeat the steps above for each of the cluster nodes. On each of the nodes, check the cluster status with the
following command:
crm_mon
If all of the nodes are online, the output should be similar to the following:
============
Last updated: Thu May 23 04:28:26 2013
Last change: Mon May 20 09:05:29 2013 by hacluster via crmd on sles-ha1
Stack: openais
Current DC: sles-ha2 - partition with quorum
Version: 1.1.6-b988976485d15cb702c9307df55512d323831a5e
2 Nodes configured, 2 expected votes
1 Resources configured.
Online: [ sles-ha2 sles-ha1 ]
stonith-sbd (stonith:external/sbd): Started sles-ha2
============
This output indicates that the cluster resource manager is started and is ready to manage resources.
3.5.4 Configuring the NFS Resource with STONITH SBD Fencing
The following subsections describe how to set up an NFS resource by installing the NFS kernel server, configuring the
shared VD by partitioning, applying the ext3 file system, and configuring the stonith_sbd fencing.
3.5.4.1 Install NFSSERVER
Use Yast to install nfs-kernel-server and all of the required dependencies.
3.5.4.2 Configure the Partition and the File System
Perform the following steps to configure the partition and the file system.
1. Use fdisk or any other partition modification tool to create partitions on the virtual drive.
For this example, /dev/sda is on a shared virtual drive with two partitions created: sda1 (part1) for sbd and sda2
(part2) for NFS mount (the actual data sharing partition)
2. Use mkfs to apply the ext3 file system to the partition(s)/
sles-ha1:~ # mkfs.ext3 /dev/sda1
sles-ha1:~ # mkfs.ext3 /dev/sda2
3.5.4.3 Configure stonith_sbd Fencing
Stonith_sbd is the fencing mechanism used in SLES-HA. Fencing ensures data integrity on the shared storage by not
allowing problematic nodes from accessing the cluster resources. Before you create another resource, you have to
configure this mechanism correctly.
For this example, the World Wide Name (WWN - 0x600605b00316386019265c4910e9a343) refers to /dev/sda1.
NOTE Use only the wwn-xyz device handle to configure stonith_sbd. The /
dev/sda1
device handle is not persistent, and using it can cause sbd
unavailability after a reboot.