About Raid Group Utilization Report; About Continuous Access Journals Report; About Ldev Io Report - HPE XP7 User Manual

About RAID Group Utilization report

The RAID Group Utilization report provides data on the most utilized RAID Groups in an XP or an XP7
disk array. The utilization of each RAID Group is derived based on the backend transfers addressed by
the RAID Group and indicates the total utilization over an entire collection interval. You can view the
report for 8 - 32 busiest RAID Groups and each chart in the report displays the utilization graphs for eight
RAID Groups. To generate or schedule a RAID Group Utilization report, follow the procedure given for
creating or scheduling a report in.
The report displays the utilization graphs for only those RAID Groups that have managed the backend
transfers. When a RAID Group is associated with a ThP pool, the extent of utilization due to I/Os
occurring on a ThP pool is considered.

About Continuous Access Journals report

The Continuous Access Journals report provides data on seventeen metrics including the aggregation of
Average IOPS, Average Throughput, Hourly Throughput, Daily Throughput and Weekly Throughput for all
CA Initiator and Target ports. The same set of metrics are available for individual CA Initiator and Target
ports in the next set of graphs. From the Journals screen, the report exports the RIO response time metric
for all Journals, Async transfer rate for all Journals, Journal utilization and Recovery Point Objective
(RPO), and Copy rate for all Journals.
In addition, the following are also included in the report:
• Top 20 Pvol IOPS
• Top 20 Pvol Throughput
NOTE:
• When you select the report type as All, the CAJ part of the data in the report includes only the
journal pool utilization for top 8 journals.
• You can only generate CAJ report at one time, the multi-select option in the Report Type list is
disabled to combine other report types.

About LDEV IO report

The LDEV IO report provides data on the busiest frontend and the backend LDEVs and RAID Groups on
an XP or an XP7 disk array. It is based on the frontend I/Os and the backend transfers. You can view the
report for 8 - 128 busiest frontend and backend LDEVs, and 8 - 32 busiest frontend and backend RAID
Groups. The port type, such as Fibre or FCoE (applicable only for P9500/XP7 disk arrays) is also
displayed beside the port ID, which is associated with the particular LDEV.
The selection is in multiples of eight and ranges from 8 - 128 for the frontend and the backend LDEVs,
and 8 - 32 for the frontend and the backend RAID Groups
The RAID Groups and LDEVs selection is in multiples of eight. If you do not select any value from the
respective drop-down lists, by default, the LDEV IO report is generated for the eight busiest frontend and
eight backend LDEVs, and eight frontend and eight backend RAID Groups. Further, the report displays
the graphs for only those LDEVs that have the associated I/Os and those RAID Groups on which the I/Os
transactions have occurred.
Consider the following example: A report is created to view 32 busiest frontend LDEVs and 16 busiest
frontend RAID Groups, and only eight of the selected 32 LDEVs and four of the selected 16 RAID Groups
are busy. PA generates the LDEV IO report where you can view the graphs for only the eight LDEVs and
four RAID Groups on which the maximum I/O transactions have occurred. The graphs are not shown for
the remaining LDEVs or the RAID Groups. The LDEV IO report also provides a link to the additional
270 About RAID Group Utilization report