Avago Technologies Syncro 9361-8i - Manual (Page 27)

Avago Technologies
- 27 -
Syncro CS 9361-8i and Syncro CS 9380-8e Solution User Guide 
October 2014
Chapter 2: Creating the Cluster
Creating the Cluster in Red Hat Enterprise Linux (RHEL) and CentOS
The following figure shows the details for the new cluster. From this screen, you can perform various actions to
manage the cluster.
Figure 14 Cluster Management Window
2.3.3 Configure the Logical Volumes and Apply GFS2 File System
Perform the following steps to create a virtual drive volume that can be managed by the Linux kernel Logical
Volume Manager. All of the commands in the following procedure are entered in the command line prompt.
1. Create a virtual drive with Shared access policy based on the steps defined in Section 2.1, Creating Virtual Drives
on the Controller Nodes .
2. Create a physical volume label for use with LVM by entering the following command:
pvcreate /dev/sdb
3. Create a volume group (mr_v1) and map /dev/sdb to the volume group by entering the following command:
vgcreate mr_v1 /dev/sdb
4. Display the volume group information by entering the following command:
vgdisplay
5. Create a virtual drive volume from the volume group of size X (gigabytes) by entering the following command:
lvcreate -n v0 --size XXXG mr_v1
Best Practice: Use the command vgdisplay to display X size information for the volume group.
The system now has the following device file (BlockDevice): /dev/mr_v1/v0.
The GFS2 file system is a cluster file system that allows for shared storage access. When you create the GFS2
resource, specify the device as /dev/mr_v1/v0.
NOTE The Cluster Name is the name that you specified in Section 2.3.2,
Creating the Cluster .