[squid-users] RAID, 64bit and cache_dir size

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
Received on Thu Jan 12 2006 - 10:50:47 MST