HP XP Performance Advisor Software - Manual (Page 25)

Using the Summary by drop-down menu
You can use the Summary by drop-down menu to view a summary of each RAID group or port on a
given array. This feature totals the LDEV I/Os, LDEV MBs, cache fast write, disk fast write, cache bypass,
backend transfer values, for all of the LDEVs on a given RAID group or port, and presents the data in a
single line. In the same line, it also displays the percentage of the Raid Group utilization random read,
random write, random write parity, sequential read, sequential write, sequential write parity, and the
overall RAID group percentage utilization (sum of the above percentages) on a given RAID group or
port, as shown in Summary by RG . RAID group utilization percentage is not displayed for external
storage volumes.
Figure 7 Summary by RG
To define a specific RAID group, you need an array ID and a RAID group ID. Each unique array ID and
RAID group ID combination produces its own line of values in the RAID group summary. For a port, you
need an array ID and a port ID. Each unique array ID and port ID combination produces its own line
in the port summary.
HP StorageWorks Performance Advisor XP Software user guide 25