I've been reading up in preparation for a deployment of Squid into a large enterprise cluster to extend our CDN, and I have been unable to determine solid answers for the following questions. Thanks in advance for any insight you guys can provide.
I have read that RAID is a bad idea for squid caches, however I am unable to find any reasoning for this aside from performance concerns. I'm using aufs and don't really see a hit between cache_dir's on a fixed disk and those on an array...but then again, it's possible I'm not examining the right metrics. Has anyone had any problems with putting their cache_dir on a RAID? Has anyone had any issues running Squid in a 64-bit environment? I plan to use Fedora Core 4 x86_64 and was wonding if anyone had any experiences (good or bad) with this. Finally, I'm interested in what was just asked about large cache_dir's: Is it better to have one large cache_dir (1 TB for example) or multiple smaller cache_dir's (5 x 200 GB) - I'm mostly concerned with performance and number of file descriptors. Each server will have 4 GB of RAM, which according to my math, should be plenty for this large of a cache...also worth noting that cached objects will be a minimum of around 500KB each. Thanks again, Gregori
