HP LeftHand P4000 SAN Solutions - Manual (Page 221)

Table 71 Definitions of Performance Monitor or Adaptive Optimization table columns (continued)
Definition Column
Lowest recorded sample value of the last 100 samples. Minimum
Highest recorded sample value of the last 100 samples. Maximum
Average of the last 100 recorded sample values. Average
Scaling factor used to fit the data on the graph’s 0 to 100 scale. Only the line on the graph is
scaled; the values in the table are not scaled. The values in the log file, if you export the file, are
also not scaled. Scale
For information about adding statistics, see “Adding statistics” (page 226) .
Understanding the performance statistics
You can select the performance statistics that you want to monitor.
For clusters, volumes, and snapshots, the reported statistics are based on client IO. This is the iSCSI
and Fibre Channel traffic and does not include other traffic such as replication, remote snapshots,
and management functions.
For storage systems and devices, the statistics report the total traffic, including iSCSI and Fibre
Channel traffic along with replication, remote snapshots, and management functions.
The difference between what the cluster, volumes, and snapshots are reporting and what the storage
systems and devices are reporting is the overhead (replication, remote snapshots, and management
functions).
Figure 112 Performance statistics and where they are measured
The following statistics are available:
Configuring and using the Performance Monitor and Adaptive Optimization 221