HP 3PAR OS 3.1.3 Command Line Interface Reference

histpd
DESCRIPTION
The histpd command displays a histogram of service times for Physical Disks (PDs).
SYNTAX
histpd [options <arg>]
AUTHORITY
Any role in the system.
OPTIONS
–w <WWN>
Specifies the World Wide Name (WWN) of the physical disk for which service times are displayed.
–nodes <node_list>
Specifies that the display is limited to specified nodes and physical disks connected to those nodes.
The node list is specified as a series of integers separated by commas (1,2,3). The list can also
consist of a single integer (1). If the node list is not specified, all disks on all nodes are displayed.
–slots <slot_list>
Specifies that the display is limited to specified PCI slots and physical disks connected to those PCI
slots. The slot list is specified as a series of integers separated by commas (1,2,3). The list can
also consist of a single integer (1). If the slot list is not specified, all disks on all slots are displayed.
–ports <port_list>
Specifies that the display is limited to specified port slots and physical disks connected to those
port slots. The port list is specified as a series of integers separated by commas (1,2,3). The list
can also consist of a single integer (1). If the port list is not specified, all disks on all ports are
displayed.
–devinfo
Indicates the device disk type and speed.
–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>). The default value of <fcol> is 6.
• The last column (<lcol>) must be less than or equal to 31. The default value of <lcol> is
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>
histpd 169