Same SSIS package was taking 18 hours on production and was just taking 6-7 hours on test server. When I increased the frequency of the Tlog backup file then it dropped to 11 hours. But still the difference of 3-4 hours is there.
I had doubt that production server might have online transaction causing this issues, however this was proved wrong when I shutdown production sites and then also same output.
Any idea where I am missing..
Santosh Singh