HP XP Racks User Manual

Page 236

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Item name

Default value

Recommended value

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
Load balancing distributes load among paths and prevents the

performance of the entire system from deteriorating. As such, we

recommend that you set this parameter to on.

-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 when 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 Logging Level on page 6-20

shows the

values of the error logging level. If an error occurs, you may have to set

the error log collection level to 1 or higher to collect log information.

Table 6-3 Values of the Error Logging Level

Value

Description

0

Collects no error log.

6-20

Command Reference

Hitachi Dynamic Link Manager (for AIX) User Guide

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