HP Hitachi Dynamic Link Manager Software User Manual

Page 141

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Description

No summary

displayed

Summary

displayed

IO-Count

#1

-

Total I/O count for a path. The maximum value
that can be displayed is 2

32

- 1 (4294967295). If

the total I/O count reaches the maximum value,

it is reset, and the count is re-started from 0. To

reset the IO-Count value to 0, execute the
dlnkmgr command's clear operation. Executing

the clear operation also resets the number of I/

O errors (IO-Errors) to 0. For details about the
clear operation, see

clear (Returns the Path

Statistics to the Initial Value) on page 6-3

.

However, a hyphen (-) is displayed when an

algorithm other than the following is used:

exrr: The Extended Round Robin algorithm

exlio: The Extended Least I/Os algorithm

exlbk: The Extended Least Blocks algorithm

IO-Errors

#1

-

Total I/O error count for a path. The maximum
value that can be displayed is 2

32

- 1

(4294967295). If the total I/O error count

reaches the maximum value, it is reset, and the

count is re-started from 0. To reset the IO-
Errors value to 0, execute the dlnkmgr

command's clear operation. Executing the
clear operation also clears the number of I/O

operations (IO-Count) to 0. For details about the
clear operation, see

clear (Returns the Path

Statistics to the Initial Value) on page 6-3

.

DNum

#1

-

When Dev indicates an entire LU, 0 is displayed.

IEP

#1

-

The displayed paths are assumed to be in an

intermittent error status and checked whether

those paths are to be operated for automatic

failbacks.
One of the following values is displayed for each

path:

-: Indicates that intermittent error

monitoring is disabled or the path status is
Offline(C).

A value of at least 0: Indicates the number

of errors that occurred during intermittent

error monitoring.

*: Indicates that an intermittent error

occurred (automatic failback does not check

the path).

LB

#1

-

The algorithm being used for load balancing.

exrr: The Extended Round Robin algorithm

exlio: The Extended Least I/Os algorithm

exlbk: The Extended Least Blocks algorithm

Command Reference

6-49

Hitachi Dynamic Link Manager User Guide for VMware

®

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