Re: Very huge email service
On Wed, 24 Nov 1999, WOL - Andreas Plesner Jacobsen wrote:
>On Tue, Nov 23, 1999 at 01:33:17AM -0300, Baltazar Quinterno wrote:
>
>I know I'm gonna be bashed to hell for my statements on this.
;)
>> Does anyone had to configure mail servers to serve 30 millon users,
>> with smtp and pop3, if so can you give any clue , because i dont know
>> from where to start.
>
>If I had to build this as a central system I wouldn't use Linux for the
>storage systems, I'd probably look into Hitachi or similar disksystems
>with a SPARC running Solaris (or several of them running in tandem)
>and some Veritas volume management.
Last time I worked with a serious Sun machine it could only do 59MB/s
sustained disk throughput. This was an E6500 with Fiber Channel SCSI talking
to an A5000 disk array containing UltraSCSI drives. It had Veritas File
System and Volume Manager. I am certain that Linux could do better with less
hardware.
>Another solution would be a bunch of Network Appliance boxen, with
>their own microkernel and NFS.
NetApps work.
>These systems would be the backbone of the system.
>
>As frontends I'd probably use some kind of x86's or Alphas running
>Debian, probably with qmail or postfix using their local disks for
>temporary spool areas.
Local disk using software mirroring for spool...
>Between these I would run a Gigabit Ethernet, using one of the fast
>giga switches (No names mentioned, no names forgotten ;)
Do we even have any fast Giga network cards?
I expect that with the state of technology the thing to do would be to have a
number of front end boxes on Fast Ethernet and have 10 of them if you need
the gigabit throughput...
>All this would be a costly solution, but I think it will be able
>to scale properly.
The system we're talking about will cost less than $1 per user. When a
government is paying it shouldn't be a problem.
>Another solution, which has already been proposed is a geographical
>split of the machines.
--
Electronic information tampers with your soul.
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