
BAppendix
Reports
Performance Advisor supports report generation for the following categories:
• Array performance reports
• LDEV IO reports
• Cache utilization reports
•ACPutilizationreports
• CHIP utilization reports
• XP Thin Provisioning (THP) pool occupancy
• Snapshot pool occupancy
• Continuous Access Journal group utilization
The sample reports of are given below.
Array perf
ormance repor ts
The array performance report allows you to view the array performance by measuring the total I/Os,
and the read/write I/Os on each array. There are 6 reports to measure and view array performance,
Total I/O R
ate, Total I/O Rate by hour of day, Total I/O Rate Detail, Read-Write Ratio, Read-Write Ratio
by hour of day and Read-Write Detail.
A sample of each reports is given below:
Total I/O Rate report
The Total I/O Rate report shows in a chart format, the number of total read and write I/O operations
per second over the entire data collection period. Total I/O Rate shows a sample Total I/O Rate report
for XP102 4.
Figure 57 Total I/O Rate
Total Back-end I/O may be compared to Total I/O and the differenc e is due to the effects of the array
cache
. The Back-end I/O load is borne by the Array Groups and ACP pairs, whereas the Total IO load
is borne by the CHIP ports.
HP StorageWorks Performance Advisor XP Software user guide
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