HP 3PAR OS 3.1.3 Command Line Interface Reference

30 Tune Commands
tunepd
DESCRIPTION
The tunepd command identifies physical disks with high service times and optionally executes
load balancing.
SYNTAX
The syntax for the tunepd command can be one of the following:
• tunepd [options <arg>] maxsvct <msecs>|highest
• tunepd [options <arg>] avgsvct <msecs>|highest
AUTHORITY
Super, Edit
Any role granted the pd_tune right
NOTE: You need access to all domains in order to run this command.
OPTIONS
NOTE: If the -nodes , -slots , -ports , or -vv options are not specified, all physical
disks are included.
–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 node 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). A 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). A list
can also consist of a single integer (1). If the port list is not specified, all disks on all ports are
displayed.
–vv <VV_name>
Specifies that the physical disks used by the indicated virtual volume name are included for statistic
sampling.
–d <seconds>
Specifies the interval, in seconds, that statistics are sampled using an integer from 1 through
2147483. If no interval is specified, the option defaults to 30 seconds.
–iter <number>
Specifies that I/O statistics are sampled a specified number of times as indicated by the number
argument using an integer greater than 0. If 0 is specified, I/O statistics are looped indefinitely.
If this option is not specified, the command defaults to 1 iteration.
tunepd 649