> On Tue, Mar 25, 2008, Marcus Kool wrote: > > I wish that the wiki for RIAD is rewritten. > > > > Companies depend on internet access and a working Squid proxy > > and therefore the advocated "no problem if a single disk fails" > > is not from today's reality. > > Mirroring? no worries. RAID5? reduced performance. > > > > One should also consider the difference between > > simple RAID and extremely advanced RAID disk systems > > (i.e. EMC and other arrays). > > > The external disk arrays like EMC with internal RAID5 are simply faster > > than a JBOD of internal disks. > > Doing some more updated testing is on my todo list in June/July timeframe, > but the last time I checked RAID5 was still slower than a JBOD for Squid. > Of course, Squid taxes disk setups in ways they really aren't designed for, > and it doesn't do it well. OTOH, writing over a SAN is usually nearly-instantaneous thanks to the enormous caches those things have. I'd like to know of anyone using a SAN for squid caches tho, and I'd like to know what kind cost estimates they did on their setup - to me it smells like a big money sink for no return. -- /kinkie
