I'd suggest splitting it - one disk for AUFS (36 gig), one disk for COSS. Don't use a filesystem w/ a 36 gig file on it. Just tell Squid to use the raw disk device. It works really well. Just remember to read the COSS setup example in the Wiki. http://wiki.squid-cache.org/SquidFaq/CyclicObjectStorageSystem As for the COSS parameters - I'm not certain. I'd start with the default configuration which seems sensible and run with it for a while. Adrian On Tue, Sep 19, 2006, Micha?? Margula wrote: > Now in topic of COSS, what is better solution (/dev/sdc is 36 GB and > /dev/sdd also will be 36 GB, same disk model): > > 1) /dev/sdc and /dev/sdc used in full with AUFS and 1GB file of COSS in > memory > 2) /dev/sdc with AUFS and /dev/sdd with COSS (wouldn't be 36 GB too much?) > 3) /dev/sdc splitted for COSS and AUFS (if yes, what ratio of > splitting), /dev/sdd with AUFS > 4) /dev/sdc and /dev/sdd splitted for COSS and AUFS > > I thought that (1) would be OK. What do you think? What is recommended > size of COSS file? > > -- > Micha?? Margula, alchemyx@xxxxxxxxxxxx, http://alchemyx.uznam.net.pl/ > "W ??yciu pi??kne s?? tylko chwile" [Ryszard Riedel]