HP XP P9500 Storage User Manual

Page 363

Paths where an error occurred and for which the KAPL08022-E

message was displayed.

Path where an error occurred during the startup of the HDLM

manager.

To prevent intermittent errors from deteriorating I/O performance, we

recommend that you also enable intermittent error monitoring when the

automatic failback function is enabled. Intermittent error monitoring is

specifiable only when automatic failbacks are enabled.
For details on the relationship between automatic failbacks and

When you specify on, specify the checking interval by specifying the

parameter immediately following on. If you do not specify a checking

interval, path statuses will be checked in the following way:

When the checking interval has not been specified before:
Every minute (default setting)

When the checking interval has been specified before:
The interval specified in the last time

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. The default is 1. 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,

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 changed the error monitor interval during monitoring an

intermittent error, the new setting takes 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.

Command Reference

6-23

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