HP Hitachi Dynamic Link Manager Software User Manual

Page 132

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Displayed Item

Description

No

summary

displayed

Summary

displayed

When connecting to Universal Storage Platform V/VM

series, Virtual Storage Platform series, Hitachi AMS2000
series

#2

, Hitachi SMS series

#2

, HUS100 series

#2

, or HUS

VM, all paths are owner paths.

IO-Count

#1

-

Total I/O count for the path, indicated by a decimal
number. The maximum value that can be displayed is 2

32

-

1 (4294967295). If the total I/O count reaches the

maximum value, it will re-start 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 the path, indicated by a decimal
number. The maximum value that can be displayed is 2

32

-

1 (4294967295). If the total I/O error count reaches the

maximum value, it will re-start 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.

HDevName

#1

-

Host device name.

IEP

#1

-

Information about the intermittent error.
This item is displayed only when you specify the -iem

parameter or when you specify iep for the -item

parameter.
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 (the path status is
Offline(E) or Online).

*

6-40

Command Reference

Hitachi Dynamic Link Manager User Guide for VMware

®

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