Hi Dikshi,
it is really a huge number of blocked records.
please check whether the same number of records you are getting when you run normally(without using HANA) using batch jobs.
create a Job with 20 steps and each step should have 1lakh BPs for SPL Screening. it will take some time (approx. 1day ). if there also you are getting the same count, then you can consider it as correct. otherwise you may need to do some changes in settings while using HANA.
my client have around 19 million BPs and we are doing C1 Screening every month using batch jobs and the block records use to be around 2000, not more than that.
hope this is helpful, let me know if you have any further clarifications on this.
Thanks,
Srinivas Yellampalli