158 POWER7 and POWER7+ Optimization and Tuning Guide
Figure B-2 is a screen capture of the VIOS Performance Advisor, focusing on the FC adapter
section of the report, which attempts to guide the user in determining if any of the FC ports
are being saturated, and, if so, to what extent. An investigate image was displayed next to the
idle FC port to confirm that the idle adapter port is intentional and because of an
administrative configuration design choice.
The VIOS Performance Advisor can be found at:
https://www.ibm.com/developerworks/wikis/display/WikiPtype/VIOS+Advisor
Figure B-2 shows a screen capture from the VIOS Advisor.
Figure B-2 The VIOS Advisor
Virtualization Performance Advisor
The Virtualization Performance Advisor provides guidance for various aspects of an LPAR,
both dedicated and shared, including:
LPAR physical memory domain allocation
Physical CPU entitlement and virtual CPU optimization
SMT effectiveness
Processor folding effectiveness
Shared processing pool
Memory optimization
Physical Fibre Channel adapter optimization
Virtual disk I/O optimization (vSCSI and NPIV)
The output is presented on a single page, and copies of the report can be saved, making it
easy for the user to document the settings and performance of their LPAR over time. The goal
of the advisor is for the user to be able to self-assess the health of their LPAR and act to attain
optimal performance.
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