Problem with caching

[Belkacem]

Hi every one,
i'm a new user of ATS, and i need your help.
here's my problem:
i read the ATS documentation carefully and configured a simple reverse proxy 
with cache.
i added the line that specifies the location of the cache directory in the 
storage.config
a simple map, in the remap.config file.
The reverse proxy is working fine, the problem is that i have 0 cache hit, no 
object is fetched from the cache (the content in cacheable)
Can any one help me please ? 
best regards.
rb