HP XP P9000 Performance Advisor Software - Manual (Page 411)

In the LDEV I/O Mapping table:
• Hyphen (-) is displayed in the RAID Format column if that RAID format is not applicable for THP
Pool V-Vols.
• Hyphen (-) is displayed in the LUSE Master column if the LDEV record is not a LUSE Master. So,
the LDEV will either be a LUSE component or an individual volume (not part of any LUSE).
• Hyphen (-) is displayed in the LUSE Status column if the LDEV record is neither a LUSE master nor
a LUSE component. The LUSE Status is not applicable for such LDEV records.
A sample of each report is given below:
Total Backend I/O Rate First Top 8 LDEVs report
The Total Backend I/O Rate First Top 8 LDEVs report displays in a chart format, the real backend I/O
rate of the busiest eight LDEVs. This can be compared to the potential maximum throughput of the
hardware. The maximum throughput varies depending on RAID level and disk mechanism type and
other factors such as the size of the individual I/Os. “
Total Backend I/O Rate First Top 8
LDEVs ” on page 412 displays a sample Total Backend I/O Rate First Top 8 LDEVs report for the XP1024
Disk Array.
HP StorageWorks P9000 Performance Advisor Software User Guide 411