HP Hitachi Dynamic Link Manager Software Licenses User Manual

Page 405

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Item name

Default value

Recommended value

extended load

balancing

Dynamic I/O path
control

#

off
The checking interval is 10

minutes.

off
The recommended checking

interval depends on the operating

environment.

Displaying the

physical storage

system information

off

The recommended value depends

on the operating environment.

Set to on if you want to display

the physical storage system

information.

#

This item is applied only when Hitachi AMS2000 series, Hitachi SMS

series, or HUS100 series storage is used.

-lb {on [-lbtype {rr|exrr|lio|exlio|lbk|exlbk}]|off}

Enables or disables load balancing.
on: Enabled
off: Disabled

-lbtype {rr|exrr|lio|exlio|lbk|exlbk}

Specify the algorithm to be used for load balancing.
rr: The Round Robin algorithm
exrr: The Extended Round Robin algorithm
lio: The Least I/Os algorithm
exlio: The Extended Least I/Os algorithm
lbk: The Least Blocks algorithm
exlbk: The Extended Least Blocks algorithm
The type of algorithm specified by the -lbtype parameter remains
stored in the system, even when you disable the load
balancing function by specifying -lb off. Therefore, if you re-

enable the load balancing function without specifying an algorithm,

load balancing will be performed according to the algorithm that is

stored in the system.

-ellv error-log-collection-level

Specify the level of error information you want to collect for an error log.
The HDLM manager log (dlmmgr[1-16].log) contains log files in which an

error log collection level can be set.

Table 6-3 Values of the Error Log Collection Levels on page 6-18

shows

the values of the error log collection level. If an error occurs, you may

have to set the error log collection level to 1 or higher to collect log

information.

Command Reference

6-17

Hitachi Dynamic Link Manager (for Linux®) User Guide

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