Virtual I/O Server Standards
Defined here are the standards that describe how a Virtual I/O (VIO)
server will be configured in the Mt Xia environment. The purpose of these
standards is to ensure business continuity, disaster recovery, high
availability, serviceability, managability, and supportability of the
Procedure to enable centralized statistics gathering from a VIO
server via WLM
The Virtual I/O (VIO) servers should not have extraneous software
installed on them, therefore the performance toolbox software is not
installed or enabled. However the Workload Manager (WLM) is installed
and should be enabled in passive mode. The procedure to enable WLM on
the VIO servers follows:
This procedure assumes there is a centralized storage location for
the WLM statistics shared to the VIO server via NFS. In the following
example the centralized storage is located on the NIM server whose
hostname is "dalapnim01". The specific directory being shared via NFS
from "dalapnim01" is "/prfdmce0".
This procedure also uses an example VIO server hostname of
Establish the NFS mount from the centralized NFS storage location.
/usr/sbin/mknfsmnt -f /prfdmce0 -d /prfdmce0 -h dalapnim01-mc2 -M sys -t rw -w bg -ABSXYZ -jqg
Add a directory to the centralized NFS storage location to contain
the statistics files from the VIO server.
mkdir -p /prfdmce0/ddadvio01/wlm
Add a record line to "/etc/inittab" to start the WLM statistics
mkitab 'ptxwlm:2:respawn:/usr/bin/xmwlm -d /prfdmce0/daladvio01/wlm -n xmwlm > /dev/null 2>&1'
Start the WLM in "passive" mode.
/usr/sbin/wlmcntrl -p > /dev/console 2>&1
Add a record to the "/etc/inittab" to start the WLM at system boot
mkitab -i rc 'wlm:2:once:/usr/sbin/wlmcntrl -p > /dev/console 2>&1'