3PAR InForm® OS 2.3.1 CLI Administrator's Manual (320-200180 Rev B, February 2010)

12.5
Viewing Histograms
InForm OS Version 2.3.1 3PAR InForm CLI Administrator’s Manual
By default, data cache memory statistics are displayed by node. You can optionally display
data cache memory statistics by virtual volume by issue the
statcmp -v command.
You can use additional filters to refine the data output. Refer to the InForm OS Command
Line Reference for complete details about
statcmp command options and for sample
command data output.
12.2.6 Viewing Statistics for CPU Usage
 To view statistics for CPU usage from all nodes, issue the statcpu command.
Refer to the InForm OS Command Line Reference for complete details about
statcpu
command options and for sample command data output.
12.3 Viewing Histograms
This section provides instructions on using commonly used CLI commands to access histogram
data on system resources. The commands described here are a subset of the histogram
commands available. For a complete list of histogram commands, see the InForm OS Command
Line Interface Reference.
Histogram data can be viewed for the following resources:
■ chunklets
■ logical disks
■ physical disks
■ ports
■ VLUNs
■ virtual volumes
12.3.1 Viewing Histograms for Chunklets
 To view histogram data for chunklets, issue the histch command.
NOTE: The setstatch command must be issued to enable statistics collection on
chunklets before chunklet histogram data can be viewed.