Configure Array Performance Data Retention Periods
Array performance data is collected from certain storage arrays:
• NetApp ONTAP Cluster-Mode arrays
• Isilon arrays
• Array LUN performance statistics are collected for Dell Compellent, EMC VNX (CLARiiON), EMC Symmetrix, HDS Tuning Manager, HP 3PAR, IBM SVC, IBM XIV, NetApp ONTAP (Block only), and NetApp Cluster-Mode.
For collected array LUN performance data, default retention periods (raw, hourly, and daily) control the retention of the data, as shown in the following list. At each data collection cycle, Hitachi Storage Viewer determines which data needs to be aggregated and moved to the next period. When the daily performance data ages out, it gets deleted. These defaults represent contiguous interval periods.
• Raw - Kept for 72 hours (3 days)
• Hourly - From the 4th day for an interval of 21 days
• Daily - From the 24th day for an interval of 180 days (6 months)
Use the following procedure to modify the retention period for array performance data in the database system parameters.
1. Log in to the Portal Server as user aptare.
2. Type the following command:
sqlplus portal/<portal_password>
SELECT param_value
FROM ptl_system_parameter
WHERE param_name='<parameter_name>';
4. Update the system parameter by substituting the new interval for <new_value>.
UPDATE ptl_system_parameter set param_value=<new_value> WHERE param_name='<parameter_name>';
commit;