I think I would do RAID5 over RAID1 since you'll get more spindles. I'd also consider multiple cores and LOTS of RAM. Mike > -----Original Message----- > From: centos-bounces at centos.org > [mailto:centos-bounces at centos.org] On Behalf Of Erick Perez > Sent: Thursday, August 23, 2007 9:52 PM > To: CentOS mailing list > Subject: [CentOS] How to size an email server to handle 5 > million emails perday > > I have no idea as to how to size an email server. I was > approached by a customer that wanted a single server with > RAID 1 disks to handle about 5 million emails a day. > In general terms, what parameters should I take into account > to size the hardware specs when the average email is about > 10kb, the smalles email is 2kb and the largest email is about > 5meg (with attachment) > > thanks, > > -- > ------------------------------------------------------------ > Erick Perez > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >