Problem in backup

Problem in backup

Hello guys,
I was going to make a backup of my Event Log Analyzer DB in which I had following problem:
I tried to use <EventLogInstallationfolder\tools\backupDatabase.bat after stopping the service. Then, it showed a wizard and I checked Whole Database Backup. But, the final result was a little folder with size of 200KB while the postgres folder is bigger than 500MB ! I change the destination with backupDatabase.bat d:\backup and surprisingly it didn't care and made a backup with the same size in default folder! 

Finally I made manual backup by coping postgres and archive folders in another location. However, I couldn't fine server\default\indexes . Is it okay? I not, where is this folder stored in?