Viewing port summary, Port summary, Port sum – HP XP P9000 Performance Advisor Software User Manual
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Description
Screen elements
The sequential write parity utilization percentage for
a RAID group.
% RGUtil Seq Write Parity
The overall percentage utilization of a RAID group,
which is the sum of the random reads, random writes,
random write parity, sequential reads, sequential
writes, and the sequential write parity.
Overall % RGUTIL
Viewing port summary
To view the summary of overall utilization of ports for an XP or a P9000 disk array, click Port Summary
in the component selection tree for that XP or P9000 disk array. This feature totals the LDEV I/Os,
LDEV MB/s, cache fast write, disk fast write, cache bypass, and backend transfer values for all of
the LDEVs on a given port.
IMPORTANT:
When you request a port summary report, the total I/Os displayed may not be equal to the sum of
the I/Os across each of the ports. This can occur if multiple paths to an LDEV exist. The port IO
summary indicates the IO ceiling values across the ports. It does not indicate the absolute or accurate
I/O rates across the ports.
Click a CHP Port ID to view the associated performance graphs in the Chart Work Area. The port
type for the selected port ID is also displayed in the chart legends. For more information, see “
Click Refresh when you want to view the updated port summary.
HP StorageWorks P9000 Performance Advisor Software User Guide
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