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Legend – HP Hitachi Dynamic Link Manager Software User Manual

Page 444

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6. Command Reference

422

Legend:

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 on the

clear

operation, see 6.2 clear (Returns the Path Statistics to the Initial
Value)
.

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 on the

clear

operation, see 6.2 clear (Returns the Path

Statistics to the Initial Value).

DNum

#1

--

A hyphen (-) 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

monitoring time for an intermittent error is out of range.

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).

Physical

Device

#1

--

SCSI device configuration information. The names of the physical
device files under the

/devices

directory are displayed.

--

Paths

Total number of the paths recognized by HDLM for the LU to be

displayed.

--

OnlinePaths

Number of online paths among the paths recognized by HDLM for the

LU. When the value of

Paths

is equal to the value of

OnlinePaths

,

all paths are online. If the value of

OnlinePaths

is less than that of

Paths

, some paths might have an error status, in which case you

should check the status of individual paths and take resolve the

problem for any paths that have an error status.

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