Hi Varun,
I have the same issue here and it looks like a bug to me. If you decrease the procedure cache size
you might be able to start Sybase with a particular "max memory". But if you try to increase the "default data cache" by the same amount you decrease the procedure cache before, Sybase won't come up anymore. I notices that there is an upper limit of 2.3 GB for the default data cache independent on the max memory. I used 10 GB max memory (12 GB RAM) but was not able to configure more than 2.3 GB default data cache. This makes SAP ASE 15.7 unusable on Windows for production environments. Maybe someone else faced the same issue or opened a support case at SAP ?
Regards,
Mat