3PAR InForm® OS 2.3.1 CLI Reference (320-200166 Rev B, March 2010)

15.6
Command Line Interface Reference InForm OS Version 2.3.1
COMMAND
histld
DESCRIPTION
The histld command displays a histogram of service times for Logical Disks (LDs) in a timed
loop.
SYNTAX
histld [options <arg>] [<LD_name_or_pattern>...]
AUTHORITY
Super, Service, Edit, Browse
OPTIONS
-vv <VV_name>...|<pattern>...
Show only LDs that are mapped to Virtual Volumes (VVs) with names that match any of the
names or patterns specified. Multiple volumes or patterns can be repeated using a comma
separated list.
-domain <domain_name>...|<pattern>...
Shows only LDs that are in domains with names that match any of the names or patterns
specified. Multiple volumes or patterns can be repeated using a comma separated list.
–metric both|time|size
Selects which metric to display. Metrics can be one of the following:
◆ both - (Default) Displays both I/O time and I/O size histograms.
◆ time - Displays only the I/O time histogram.
◆ size - Displays only the I/O size histogram.
–timecols <fcol> <lcol>
For the I/O time histogram, shows the columns from the first column <fcol> through last
column
<lcol>. The available columns range from 0 through 31.
◆ The first column (<fcol>) must be a value greater than or equal to 0, but less than the
value of the last column (
<lcol>) (default value of 6).
◆ The last column (<lcol>) must be less than or equal to 31 (default value of 15).