HP Serviceguard for Linux Version A.11.16 Release Notes, Third Edition, August 2006

Serviceguard for Linux Version A.11.16 Release Notes
Compatibility Information and Installation Requirements
Chapter 1 23
NOTE MD also supports software RAID; but this is not currently supported
with Serviceguard for Linux.
Using udev for Persistent Device Names
In a Linux system, device names are not necessarily consistent from one
boot to another.
Consider a system with LUNs /dev/sdg, /dev/sdh, and /dev/sdi. If
/dev/sdh is removed, then after the system is rebooted the old /dev/sdi
may be renamed to /dev/sdh. This can cause problems with scripts that
refer to specific device names. Some I/O components provide a persistent
naming function, such as the multipath function within the QLogic
driver.
Serviceguard for Linux now supports the use of udev in cases where no
other persistent naming is available. Details are in the white paper
“Serviceguard for Linux and Persistent Device Names”. This is available
in the Serviceguard for Linux section of http://docs.hp.com.
Installing HP Serviceguard for Linux
Serviceguard documentation no longer describes the process for
installing Linux. Instead, use the documentation for the distribution you
are using.
NOTE HP recommends that after installing Linux, you enable ssh, and use it
for remote login (instead of rlogin, remsh, or telnet), and the related
command scp for remote copy. ssh and scp encrypt passwords before
transmitting them, whereas rlogin, rcp, etc., do not.
IMPORTANT Before you begin installing Serviceguard, make sure that all components
of the cluster have been upgraded to their latest firmware versions.