When you perform a system copy from Production (PRD) to a Non production System(QAS)
we run a BDLS to convert the SID from PRD to QAS for example.
BDLS usually takes long time
Ex., 1.2 TB database, it lasts about 12 hours
Check related posts on BDLS Performance tuning steps
Note: When not to run BDLS in SAP System Copy ?
If you don't change the SID and you use the same client, you should not need to run BDLS.
tags:BDLS runtime performance, When to run BDLS in SAP System Copy , what is SAP BDLS, SAP logical system conversion, t-code BDLS,