Total i/o rate report – HP XP P9000 Performance Advisor Software User Manual

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In addition, it includes a section called Findings at the beginning of the report.

IMPORTANT:

The Findings section for an XP disk array provides a brief summary on the status of the CHIPs,
cache, ACP, and the LDEVs.

The Findings section for a P9000 disk array provides a brief summary on the status of the cache,
LDEVs, and the MP blades.

The utilization summary of the CHIP/CHA and the ACP/DKA MPs are not displayed in the Array
Performance report - Findings section for the P9000 disk arrays.

Following is a sample Findings section for a P9500 Disk Array:

NOTE:

The backend transfer is the block of data that is transferred between the XP or the P9000 disk array
cache and the RAID groups. Every read cache miss results in a backend transfer.

A sample of each report is given below:

Total I/O Rate report

The Total I/O Rate report displays in a chart format, the number of total read and write I/O operations
over the entire period.

Total I/O Rate

” on page 403 displays a sample Total I/O Rate report for the

P9500 Disk Array.

Sample reports

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