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15.2
Command Line Interface Reference InForm OS Version 2.2.4
COMMAND
histch
DESCRIPTION
The histch command displays a histogram of service times in a timed loop for individual
chunklets.
SYNTAX
histch [options <arg>]
AUTHORITY
Super, Service, Edit, Browse
OPTIONS
–ld <LD_name>
Specifies the logical disk, identified by name, from which chunklet statistics are sampled.
–ch <chunklet_num>
Specifies that statistics are limited to only the specified chunklet, identified by number.
–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.
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