Hi Amos, When you say: /"The rest is harder. You need to do a scan of a disk cache separating the message headers - both counting the number of items found and total size of the headers processed. Multiplying the metadata size by the number of objects in the cache and adding the total message header size." / What do you mean by message header in this context? Just the first line in each file or all HTTP headers (head of each file until the first \r\n)? If you mean all HTTP headers and if I correctly understood what Alex says, HTTP headers are not taken into the consideration in this context. Therefore should I eliminate them in the calculation? Warm Regards, ----- Bug Reporter Contributor OpenSource = Open-Minded -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/HDD-RAM-Capacity-vs-store-avg-object-size-tp4683072p4683095.html Sent from the Squid - Users mailing list archive at Nabble.com. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users