HP Hitachi Dynamic Link Manager Software User Manual
Page 317
6. Command Reference
295
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 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 about the
clear
operation, see 6.2 clear (Returns the Path
Statistics to the Initial Value).
DNum
#1
-
Dev number, indicated by a decimal number.
This item pertains to a logical volume number.
There is one Dev in an LU, so the number is fixed to
0
.
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
failback.
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).
VG
#1
VG
#2
The volume group name LU is registered. When the LU is not
registered as the volume group, a hyphen (-) is displayed.
-
Paths
Total number of the paths recognized by HDLM for the LU to be
displayed.
-
OnlinePaths
Number of available paths in the displayed paths, indicated by a
decimal number. When the value of
Paths
equals the value of
OnlinePaths
, all paths are online. If the value of
OnlinePaths
is
less than that of
Paths
, some paths are offline. In this case, you should
check the offline paths and take appropriate action for any paths that
have an error status.
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