Kind of Caches and his compatibilies

[Angel Mieres <amieres@xxxxxxxxxxxxxxxxxx>]

Hi, 

I'm testing kinds of caches that squid manage and I would like to know
if I switching kind of cache from UFS to AUFS involve any risk to cache
files.
Example:

cache_dir ufs /var/spool/squid 4096 16 256  
to 
cache_dir aufs /var/spool/squid 4096 16 256

I think that it doesn't affect because i suppouse that the changes is on
the way to store caches and not in the structure of them. isn't it?

Regards,
A.Mieres