HP StorageWorks Performance Advisor XP Software user guide (T1789-96025, October 2007)

Using the Summar
ybydrop-downmenu
You can use the S
ummary by drop-down menu to view a summary of each RAID group or port on a
given array. Th
is feature totals the LDEV I/Os, LDEV MBs, cache fast write, disk fast write, cache bypass,
backend trans
fer values, for all of the LDEVs on a given RAID group or p ort, and presents the data in a
single line. I
n 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 R AID group or
port, as shown in Summary by RG. RAI D group utilization percentage is not displayed for external
storage volu
mes.
Figure 7
Summary by RG
To define
aspecific R AID group, you need an array ID and a R A I D group ID. Each unique array ID and
RAID gr
oup ID combination produces its own line of values in the RAID group summary. For a port, you
need an array ID a nd a port ID. Each unique array ID and port ID combination produces its own line
in the port summar y.
HP StorageWorks Performance Advisor XP Software user guide
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