Brocade Network Advisor SAN User Manual v11.1x (53-1002167-01, May 2011)

786 Brocade Network Advisor SAN User Manual

53-1002167-01

SAN Historical performance data

Performance should be enabled constantly to receive the necessary historical data required for a

meaningful report. The following options and features are available for obtaining historical

performance data:

• Collect historical performance data from the entire SAN or from a selected .

NOTE

Virtual Fabric logical ISL ports are not included in performance collection.

• Persist data on every polling cycle (5 minutes).

Store up to records (maximum) for each port. Most ports require 600 KB disk space; however,

the 256-Port Director requires 7GB disk space.The maximum number of records varies

depending on the configuration on the Server Management Console, Performance Data Aging

tab.

Option 1—1,246 records

Option 2—3,034 records

For more information, refer to “Defining the performance data aging interval” on page 229.

• Use the RRD (Round Robin Database) style aging scheme.

• Enable granularity.

The granularity varies depending on the configuration on the Server Management Console,

Performance Data Aging tab.

Option 1—2 years data with the following samples

• 5 minutes granularity for last 1 day (288 samples)

• 30 minutes granularity for last 3 days (144 samples)

• 2 hour granularity for last 7 days (84 samples)

• 1 day granularity for last 2 years (730 samples)

Option 2—2 years data with the following samples

• 5 minutes granularity for last 8 days (2304 samples)

• 1 day granularity for last 2 years (730 samples)

For more information, refer to “Defining the performance data aging interval” on page 229.

• Support interpolation for up to 6 data points.

• Generate reports. For instructions on generating reports, refer to “Generating SAN

performance reports” on page 927.

Enabling historical performance collection SAN wide

To enable historical performance collection, select Monitor > Performance > Historical Data

Collection > Enable SAN Wide.

Historical performance data collection is enabled for all fabrics in the SAN.