Setting Up Intermittent Error Monitoring; Setting Up Audit Log Data Collection - Hitachi XP P9500 User Manual

Setting Up Intermittent Error Monitoring

To prevent I/O performance from dropping when an intermittent error occurs,
we recommend that you enable intermittent error monitoring.
When intermittent error monitoring is enabled, you can specify intermittent
error conditions. The default value for the intermittent error-monitoring
interval is 30. The default value for the number of error occurrences is 3.
The system assumes that an intermittent error has occurred if the specified
number of times that the error needs to occur is reached during the specified
monitoring interval (minutes). A path that is assumed to have an intermittent
error is excluded from performing an automatic failback. Intermittent error
monitoring starts right when the path is recovered from the error by
performing an automatic failback. Monitoring is performed on each, individual
path.
To determine whether a path is invalid for an automatic failback, you can use
the results of the dlnkmgr command's view operation.
The following is an example of using a command to enable intermittent error
monitoring:
>dlnkmgr -s host-name -u user-name -p password set -iem on -intvl 20
-iemnum 2
To enable intermittent error monitoring, specify on. To disable intermittent
error monitoring, specify off. When you specify on, you can use the -intvl
and -iemnum parameters to specify intermittent error conditions (the
conditions used by the system to determine whether an intermittent error is
occurring). In the -intvl parameter, specify the monitoring interval for an
intermittent error. In the -iemnum parameter, specify the number of times
that the error is to occur. When these parameters are omitted and 3 or more
errors occur within 30 minutes, the system assumes that an intermittent
error is occurring.

Setting Up Audit Log Data Collection

If you want to collect audit log data, you must also specify the collection level
for audit log data and the audit log categories.
Table 3-4 Values Indicating Audit Log Data Collection Levels on page 3-11
describes the values that indicate audit log data collection levels. An audit log
data collection level is a severity level. The default is 6.
0
1
2
Table 3-4 Values Indicating Audit Log Data Collection Levels
Value (severity)
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide (for VMware(R))
Explanation
Error-level audit log data is collected.
3-11