HP Hitachi Dynamic Link Manager Software Licenses User Manual

Page 379

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Specifies the number of times the same path can be used for sequential

I/O operations when the extended Round Robin (exrr), Least I/Os

(exlio), or Least Blocks (exlbk) algorithm is used for load balancing.
You an specify a decimal (base 10) value from 0 to 999999. The default is
100.
If you specify 0, the same path is used as long as the sequential I/O

operations continue.

-dpc {on|off} [-pathid path-ID -lu | -pathid path-ID -storage]

Enables or disables the dynamic I/O path control function for each

storage system or LU. The default value is "off".
on: Enabled
off: Disabled

-pathid path-ID -lu

Sets the dynamic I/O path control function to enabled or disabled for

each LU. Specify one of the IDs of the paths connected to the target

LU.

-pathid path-ID -storage

Sets the dynamic I/O path control function to enabled or disabled for

each storage system. Specify one of the IDs of the paths connected to

the target storage system.

If the -pathid parameter is not specified, the setting is performed for

each system, and the setting for each storage system or LU is cleared.

-dpcintvl checking-interval

Specifies the checking interval (in minutes) for reviewing information

about switching of controllers performed by the storage system which is

used in the dynamic I/O path control function. Specify a value in the

range from 1 to 1440. The default value is "10".

-pstv {on|off}

Enables or disables the display of the physical storage system

information. The default value is "off".
on: Enabled
off: Disabled
If the display of the physical storage system information is enabled,

information about the physical storage system is displayed. If the display

of the physical storage system information is disabled, information about

the storage system recognized by the operating system is displayed. For

a virtualized storage system, virtual information is displayed, and for a

non-virtualized storage system, physical information is displayed.
The display results of view operations depend on whether the display of

the physical storage system information is enabled or disabled. The

following table shows the display items for which the display results differ.

Command Reference

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Hitachi Dynamic Link Manager (for Solaris) User Guide

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