HP Cisco MDS 9222i Cisco MDS 9000 Family Fabric Manager Configuration Guide, R - Page 1151

Chapter 60 Performance Monitoring Historical Performance Monitoring Send documentation comments to [email protected] Baseline thresholds are defined for a configured time of day or week (1 day, 1 week, or 2 weeks). The baseline is created by calculating the average of the statistical results for the configured time each day, week, or every 2 weeks. Table 60-2 shows an example of the statistics used to create the baseline value for a collection defined at 4 pm on a Wednesday. Table 60-2 Baseline Time Periods for a Collection Started on Wednesday at 4pm Baseline Time Window 1 day 1 week 2 weeks Statistics Used in Average Calculation Every prior day at 4 pm Every prior Wednesday at 4 pm Every other prior Wednesday at 4 pm Baseline thresholds create a threshold that adapts to the typical traffic pattern for each link for the same time window each day, week, or every 2 weeks. Baseline thresholds are set as a percent of the average (110% to 500%), where 100% equals the calculated average. As an example, a collection is created at 4 pm on Wednesday, with baseline thresholds set for 1 week, at 150% of the average (warning) and 200% of the average (critical). Performance Manager recalculates the average for each link at 4 pm every Wednesday by taking the statistics gathered at that time each Wednesday since the collection started. Using this as the new average, Performance Manager compares each received traffic statistic against this value and sends a warning or critical event if the traffic on a link exceeds this average by 150% or 200% respectively. Table 60-3 shows two examples of 1-Gigabit links with different averages in our example collection and at what traffic measurements the Warning and Critical events are sent. Table 60-3 Example of Events Generated for 1-Gigabit Links Average 400 Mbps 200 Mbps Warning Event Sent at 150% 600 Mbps 300 Mbps Critical Event Sent at 200% 800 Mbps 400 Mbps Set these thresholds on the last screen of the Collections Configuration Wizard by checking the Send events if traffic exceeds threshold check box. Using the Performance Manager Configuration Wizard See the "Creating Performance Collections" section on page 7-46. Viewing Performance Manager Reports You can view Performance Manager statistical data using preconfigured reports that are built on demand and displayed in a web browser. These reports provide summary information as well as detailed statistics that can be viewed for daily, weekly, monthly, or yearly results. Choose Performance > Reports to access Performance Manager reports from Fabric Manager. This opens a web browser window showing the default Fabric Manager web client event summary report. Click the Performance tab to view the Performance Manager reports. Performance Manager begins reporting data ten minutes after the collection is started OL-8007-10, Cisco MDS SAN-OS Release 3.x Cisco MDS 9000 Family Fabric Manager Configuration Guide 60-5