Purging Database Tables and Modifying Retention Periods > Capacity: Default Retention for EMC Isilon Performance Tables
  
Version 10.0.01
Capacity: Default Retention for EMC Isilon Performance Tables
For the retention periods for EMC Isilon raw, hourly, and daily array performance data, see Configure Array Performance Data Retention Periods
Table Description
Table Name
Default Retention
Notes
Disk Performance
aps_isi_disk_perform_hr
6 months
KEEP_ISI_LOG_MONTHS
Array Performance
aps_isi_array_perform_hr
6 months
KEEP_ISI_LOG_MONTHS
Node Performance
aps_isi_node_perform_hr
6 months
KEEP_ISI_LOG_MONTHS
Protocol Performance
aps_isi_protocol_perform_hr
6 months
KEEP_ISI_LOG_MONTHS
OneFS Performance
aps_isi_onefs_perform_hr
6 months
KEEP_ISI_LOG_MONTHS
Daily data that is older than the last 6 months (defined in the system parameter KEEP_ISI_LOG_MONTHS) is purged as a normal process. This process is scheduled for the Monday after the 15th of every month at 7:00 a.m.
Example of Customizing the EMC Isilon Performance Data:
When you modify the KEEP_ISI_LOG_MONTHS parameter, you are changing the purge interval for all Isilon performance tables.
update ptl_system_parameter set param_value = '4'
 where param_name = 'KEEP_ISI_LOG_MONTHS';