Purging of alarm data from nas_transaction_summary table is less than the mentioned time period of the nas probe configuration

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)
• Unified Infrastructure Management for Mainframe
• CA Unified Infrastructure Management SaaS (Nimsoft / UIM)

Issue/Introduction

We have observed that the data for the alarms in nas_transaction_summary table are not there for 90 days. We have data from 10/03/2021, whereas as per the configuration of nas probe-nis bridge tab, we should have data for 90 days.

Environment

Release : 20.3

Component : UIM NAS

nas 9.31

Cause

- Missing nis bridge parameters in nas.cfg

Resolution

1. The nas.cfg was missing the following nis_bridge sections:

nis_trans_compress =
nis_trans_summary =
nis_trans_history =

2. Added new key housekeeping_keep_open_alarms = no

so that the nas will retain closed alarms.

Additional Information

nas Best Practices, Tips and Techniques (for Large Environments)

https://knowledge.broadcom.com/external/article?articleId=192089