HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

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 snapshot of the Findings section:
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 413 displays a sample Total I/O Rate report for the
XP1024 Disk Array.
Sample reports412