HP XP P9000 Performance Advisor Software - Manual (Page 372)

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” (page 372) displays a sample Total Backend I/O Rate First Top 8 LDEVs report for the
XP1024 Disk Array.
Figure 45 Total Backend I/O Rate First Top 8 LDEVs
Total Backend I/O Rate First Top 8 RAID Groups report
The Total Backend I/O Rate First Top 8 RAID Groups report displays in a chart format, the real
backend I/O rate for the busiest eight RAID groups. This can be compared to the potential maximum
372 Sample reports