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

The additional set of metrics that P9000 Performance Advisor supports for the LDEVs are as follows:
Table 21 Additional metrics for LDEVs
DescriptionAdditional LDEV metricsResources
The total random I/Os on the LDEV
during the entire collection interval.
Random I/OLDEVs
The total sequential I/Os on the
LDEV during the entire collection
interval.
Sequential I/O
The sum of random reads and
sequential reads on the LDEV during
the entire collection interval.
Reads
The sum of random writes and
sequential writes on the LDEV during
the entire collection interval.
Writes
The top 20 consumers and their
average utilization of an individual
MP blade over an entire collection
interval.
The top 20 consumers are
considered based on each
consumer's average utilization of the
CPU cycles.
MP Blade Util - Top 20 Consumers
The average utilization of an
individual MP blade by each of the
following processing types over an
entire collection interval:
• Open Target
• Open Initiator
• Open External Initiator
• Open Mainframe Target
• Open Mainframe Ext Initiator
• Backend
• System
For more information on the
processing types, see Table
15 on page 306.
MP Blade Util/Processing type
IMPORTANT:
The MP Blade Util - Top 20 Consumers and the MP Blade Util/Processing type metrics are applicable
only for the P9000 disk arrays.
Troubleshooting issues for components associated with applications362