Managing HP Serviceguard for Linux, Eighth Edition, March 2008

Planning and Documenting an HA Cluster
Hardware Planning
Chapter 4 101
Disk Device File
Enter the disk device file name for each SCSI disk or
LUN.
Information from this section of the worksheet is used in creating the
mirrored disk configuration using LVM. In addition, it is useful to gather
as much information as possible about your disk configuration.
You can obtain information about available disks by using the following
commands; your system may provide other utilities as well.
• ls /dev/cciss/c* (Smart Array cluster storage)
• ls /dev/hd* (non-SCSI/FibreChannel disks)
• ls /dev/sd* (SCSI and FibreChannel disks)
•du
• df
• mount
• vgdisplay -v
• lvdisplay -v
See the manpages for these commands for information about specific
usage. The commands should be issued from all nodes after installing the
hardware and rebooting the system. The information will be useful when
doing LVM and cluster configuration.
Hardware Configuration Worksheet
The hardware configuration worksheet on page 364 will help you
organize and record your specific cluster hardware configuration. Make
as many copies as you need.