HP 3PAR OS 3.1.3 Command Line Interface Reference

histvv
DESCRIPTION
The histvv command displays Virtual Volume (VV) service time histograms in a timed loop.
SYNTAX
histvv [options <arg>] [<VV_name>|<pattern>]...
AUTHORITY
Any role in the system.
OPTIONS
-domain <domainname>...|<pattern>...
Shows only the VVs that are in domains with names that match the specified domain name(s) or
pattern(s).
–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, show 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).
• The first column includes all data accumulated for columns less than the first column and the
last column includes accumulated data for all columns greater than the last column.
–sizecols <fcol> <lcol>
For the I/O size histogram, show the columns from the first column (<fcol>) through the last
column (<lcol>). Available columns range from 0 through 15.
• 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 3).
• The last column (<lcol>) must be less than or equal to 15 (default value of 11).
-pct
Shows the access count in each bucket as a percentage.
NOTE: For the following options, by default the histogram shows data from the start of the
command.
–prev
Histogram displays data from a previous sample.
–rw
Specifies that the display includes separate read and write data. If not specified, the total is
displayed.
–d <secs>
184 Hist Commands