Intermittent error monitoring, see, Table 6-5 relationship between the – HP Hitachi Dynamic Link Manager Software Licenses User Manual

Page 374

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During intermittent error monitoring, if you change the number of

times that the error is to occur, the error count and the elapsed time

measured since monitoring starts are reset to 0, and monitoring starts

by using the new settings.
Outside the duration of intermittent error monitoring, if you change

the number of times that the error is to occur, the new settings take

effect after the next time automatic failback succeeds. When

intermittent error monitoring is not being performed, the number of

errors that determine that an intermittent error has occurred is not

counted and this value is not changed.
The number of times that the error is to occur is stored in the system,

even when -iem off is specified and intermittent error monitoring is

disabled. Therefore, when you re-enable intermittent error monitoring

without specifying the number of times, the error monitoring will be

executed using the value stored in the system.

When the set -iem on operation is executed during error monitoring,

even though you do not change the conditions for intermittent error, the

number of errors and the time elapsed since the error monitoring starts

are reset to 0. Intermittent error monitoring will then resume with the

changed settings.
If you set the automatic failback function to off while intermittent error

monitoring is on, intermittent error monitoring will be disabled. Note,

however, that if you use the view -sys operation to display the HDLM

function configuration, Intermittent Error Monitor will be shown as on.

When the automatic failback function is returned to on, intermittent error

monitoring will once again be enabled.
The executable operations for the automatic failback function and

intermittent error monitoring depend on the settings for those functions.

The table below shows the relationship between the settings and available

operations for automatic failback and intermittent error monitoring.

Table 6-5 Relationship Between the Setting for the Automatic Failback

Function and Intermittent Error Monitoring and the Executable Operations

Setting

Executable operation

Result of operation

AFB

IEM

on

on

Set AFB to on.

The operations of AFB and IEM do not

change.

Change the AFB setting.

AFB is performed under the new
settings.

#1

Set AFB to off.

AFB and IEM are disabled.

The error count, elapsed monitoring

time, and information about paths

not subject to automatic failback are

reset.

6-26

Command Reference

Hitachi Dynamic Link Manager (for Solaris) User Guide

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