Re: [squid-users] Disk Configuration

Chris Robertson wrote:

> Everything I've read says that you should not use any RAID for your cache
> directories. Make a bunch of cache dirs (each on its own disk), and let
> Squid sort it out.
>
> Chris
>

I just want to add that 250GB of cache needs a lot of memory for the
index. The figure I know is 10M of RAM for 1GB of cache.
It is a good thing to use multiple separate drive to spread the i/o but
I would carefully increase the cache size while monitoring the memory usage.
I have recently switched vom striping to separate drives. The
performance is similar, but if one drive fails only one cache_dir is
lost. With a stripe you will lose everything. (Thanks to Adam Aube for
pointing this out for me).

Regards, Hendrik Voigtl�nder

> -----Original Message-----
> From: J Thomas Hancock [mailto:jthancock@bwsys.net]
> Sent: Monday, November 29, 2004 10:50 AM
> To: squid-users@squid-cache.org
> Subject: [squid-users] Disk Configuration
>
>
> I am currently configuring a small army of squid servers to act as
> transparent caches. They are running Fedora Core 3 and Squid 2.5. We are
> using disk striping to have a fairly large and fast cache directory.
>
> I have heard in older versions of Squid, that there were performance issues
> if the cache directory got to large. We currently have approximately 250GB
> of storage for our cache directory. Would you recommend having one huge
> 250GB cache directory or would you recommend having several smaller cache
> directories all on the same disk?
>
>
> Thank you,
> Tom
>
Received on Mon Nov 29 2004 - 14:03:21 MST