Hitachi XP P9500 User Manual page 209

The previously used interval
The explanation for the following sub-parameter describes how to specify
the interval between path status checks.
-intvl checking-interval
Specify the interval between path status checks. Specify a value from
1 to 1440 minutes. Specify an interval appropriate for your operating
environment.
If intermittent error monitoring is on and the number of times that the
error is to occur is set to a value of 2 or more, the following condition
must be satisfied:
error-monitoring-interval >= checking-interval-for-automatic-
failback x number-of-times-error-is-to-occur-during-
intermittent-error-monitoring
If this condition is not satisfied, the KAPL01080-W message will be
output and an error will occur. If this happens, change any of the
following settings: the checking interval for automatic failbacks, the
intermittent error-monitoring interval, or the number of times that the
error is to occur.
When you set the number of times that the error is to occur to 1, the
above condition does not need to be satisfied.
When you change the error monitor interval while intermittent error
monitoring is running, the new settings will take effect immediately.
When the checking interval is shortened and the checking interval
time after the change has already elapsed during the current checking
interval, the path status check will start over.
This setting remains stored in the system, even if you disable the
function by changing the setting of automatic failbacks to off.
Therefore, if you re-enable automatic failbacks and do not change the
interval, path status checks will be executed at the interval already
stored in the system.
When you upgrade from HDLM 03-00 or 03-01 to 05-00 or later:
When you upgrade to HDLM 05-00 or later from HDLM 03-00 or
03-01, and the -pchk parameter was already set to on in the previous
version, the -afb parameter will be set to on in the new version. The
value of the -intvl parameter will be set to the same value as the
previous checking interval of the -pchk parameter.
-iem { on [-intvl error-monitoring-interval] [-iemnum number-of-
times-error-is-to-occur] | off }
Enables or disables intermittent error monitoring.
on: Enabled
off: Disabled
Intermittent error monitoring can be enabled only when automatic
failback is set to on.
Hitachi Dynamic Link Manager User Guide (for Windows(R))
Command Reference
6-21