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Dell HPC NFS Storage Solution - High Availability Configurations
Page 39
Set up HA LVM on the other (passive) server:
 lvdisplay should show DATA_LV
 Edit /etc/lvm/lvm.conf and edit locking_type to be 1
 Edit /etc/lvm/lvm.conf and change the volume list to
volume_list = [“VolGroup00” , “@passive” ]
where VolGroup00 is the volume group that contains the “/” file system for the OS.
“passive” is the name of the server as defined in the cluster.conf file that will be
used for the cluster configuration..
 Remake the initrd
# mkinitrd -f /boot/initrd-2.6.18-194.el5.img 2.6.18-194.el5
Reference - http://kbase.redhat.com/faq/docs/DOC-3068
4) On the active server, create the XFS file system
# mkfs.xfs -l size=128m /dev/DATA_VG/DATA_LV
5) On both servers, create a mount point for the XFS file system. This is the directory where the XFS
file system will be mounted and that will be exported over NFS to the clients.
# mkdir /mnt/xfs_data
6) Configure cluster. Refer to the screen shot in Figure 18
On the ‘active’ R710:
 Launch luci web GUI (https://active:8084).
 Navigate to the ‘cluster’ tab and click on “Create a New Cluster”
 Enter the cluster name, for example ‘NSS_HA_CLUSTER’
 Enter the node hostnames ‘active’ and ‘passive’. Enter the passwords.
 Select “Use locally installed packages”
 Check “Enable Shared Storage Support”
 Check “Check if node passwords are identical” if the node passwords are identical
 Click on “View SSL cert fingerprints”
 Click on “Submit”