Managing HP Serviceguard for Linux, Eighth Edition, March 2008

Planning and Documenting an HA Cluster
Hardware Planning
Chapter 4100
NOTE With the rapid evolution of Linux, the multipath mechanisms may
change, or new ones may be added. Serviceguard for Linux supports
DeviceMapper multipath (DM-MPIO) with some restrictions; see the
Serviceguard for Linux Certification Matrix at the address provided in
the Preface to this manual for up-to-date information.
NOTE md also supports software RAID; but this configuration is not currently
supported with Serviceguard for Linux.
Disk I/O Information
This part of the worksheet lets you indicate where disk device adapters
are installed. Enter the following items on the worksheet for each disk
connected to each disk device adapter on the node:
Bus Type
Indicate the type of bus. Supported busses are F/W
SCSI and FibreChannel.
LUN Number
Indicate the number of the LUN as defined in the
storage unit.
Slot Number
Indicate the slot number(s) into which the SCSI or
FibreChannel interface card(s) are inserted in the
backplane of the computer.
Address
Enter the bus hardware path number, which is the
numeric part of the host parameter, which can be seen
on the system by using the following command:
cat /proc/scsi/scsi