Hi, I am working on a project where we need to replace all the VSAM and IAM files to VSAM RLS for better higher availability. But while converting the IAMRLS files to VSAM RLS, we are not getting the performance we are expecting. While triggering a transaction to delete all old records from a file it's taking way longer than IAM RLS. While analyzing the Omegamon report I can see below are taking more time :
Journal(MVS Logger) I/O wait Time --- 54%
RLS Wait Time ---- 45%
These two are consuming almost 90% of total execution time. Any guidance on how to reduce this time would be highly appreciated. Thank you very much.