HP StorageWorks XP Performance Advisor Software v4.6 User and Troubleshooting Guide (T1789-96094, June 2010)

1. Time Posted: The time when the performance of a resource went beyond or below the threshold
level, and a new record was posted. When a new record is added for a resource, for the first
time, the Time Posted time stamp be the time when an alarm was configured on the resource.
2. Time Updated: The last time when the resource was monitored for change in performance value
(if the performance of a resource exceeded or dropped below the set threshold level).
3. Time Dispatched: The time when the alarm notifications were dispatched. The current performance
value of a resource is also displayed.
Initially, the message No records found matching the given filter criteria is
displayed if there are no resource records posted in the Alarm History table.
Related Topics
See the following related topics:
• “Understanding alarms history” on page 135
• “Alarm History screen” on page 136
• “Filtering records in Alarms History table” on page 138
• “Forecasting THP pools' utilization” on page 142
• “Viewing graph of metric value's performance” on page 143
• “Adding or removing metric values” on page 121
• “Configuring notification and monitoring settings” on page 123
Understanding alarms history
For XP Performance Advisor to start monitoring the performance of a resource and generate an alarm,
you must configure the required threshold and dispatch settings on the Activate Alarms screen, and
also enable an alarm for that resource. For more information on configuring alarms, see “Configuring
notification and monitoring settings” on page 123. After an alarm is configured, XP Performance
Advisor monitors the performance of a resource from the next data collection cycle. A new record is
displayed on the Alarm History screen with the time of posting appearing under Time Posted.
IMPORTANT:
XP Performance Advisor posts the record only if data collection is in progress for the XP array to
which the resource belongs.
While configuring an alarm, if you set threshold and dispatch settings but do not enable the alarm
for a resource, XP Performance Advisor does not monitor that resource and generate an alarm when
required. For example, an alarm is enabled (YES displayed under Active) on the first record, 2:00,
and disabled (NO displayed under Active) on the second record, 2:01. Therefore, in the next data
collection cycle, XP Performance Advisor posts a record only for 2:00 on the Alarm History screen.
The time of posting the record is displayed under Time Posted. (The Time Updated and Time Dispatched
columns are not updated as this is the first record posted for the metric value, 2:00). XP Performance
Advisor monitors the metric value's performance till the time the corresponding alarm is disabled, or
the metric value record is removed.
In every data collection cycle, XP Performance Advisor retrieves and compares the current performance
value of a resource with the set threshold value. The time when this value was retrieved and compared
is shown under Time Updated. If the current performance value exceeds the set threshold value, XP
Performance Advisor does the following:
1. Posts a new record and displays the time of posting under Time Posted
2. Dispatches an alarm notification of type, XP Alarm to the intended recipient
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