Hi there,
Yes I looked at this project with envious eyes too as we have a similar
one underway.
We have worked on the philosophy that the students (kids!) won't really
be trashing the email server continuously but rather in bursts. (Morning
interval, lunch, IT periods etc...) and you should be able to get away with
one (or two) good servers on good (read fast) linux boxes and a separate one
for the staff. One good server for 24,000 users where the say 5% 1000 or so
may attack say popd servers to RECOVER their mail at any one stage and only
10 to 20 will SEND mail messages at any one instance (assuming sendmail).
I am assuming that the email messages don't include massive images everytime!!
If this is insufficient under pressure then perhaps placement of mail servers
in assessed heavy user schools. Eventually you will end up with an
ECONOMICALLY and LOAD SPECIFIED number of mail servers!!! Which should be
cheaper and easier to manager than 60 mail servers...
We would be interested in your results!!!
Regards,
Bruce.
>I would think it is smart to put each school on a separate mail server, but
>60 mail servers is a lot, so maybe if you divide among 6 servers. I am not
>familiar with sizing, but I am looking from a disaster recovery view. If
>XYZ school is having email problems, you (and them) don't want ABC and QRS
>schools also having problems. Sounds like a very nice project.....I am a
>little green...
>
>
>Jason
>
>> -----Original Message-----
>> From: support [SMTP:[EMAIL PROTECTED]]
>> Sent: Monday, January 17, 2000 6:32 PM
>> To: '[EMAIL PROTECTED]'
>> Subject: Capacity Planning
>>
>>
>> Hi
>>
>> Re: Capacity Planning
>>
>> I have a nice project on a 3 year contract.
>>
>> We will be developing a web site to be used by 60 schools.
>>
>> There will be 1 domain name used for the school, for arguments sake lets
>> say "schools.com" and
>> this will be sectioned off per school with the same pages for each
>> school. + each school will also have there own .edu domain for email and
>> email for school.com domain
>>
>> So it will be main page, school1, section1, section2, section3 and
>> School2, section1, section2, section3 etc upto school 60 and could be 20
>> sections per school
>>
>> 60 Schools x 400 pupils per school
>>
>> Each school has 10Mb link to Internet ( lets say they only have 20
>> computers per school)
>>
>> 400 x 60 email addresses are required of .edu addresses 24,000 addresses
>> + teachers addresses
>> 400 x 60 email addresses are required for .com addresses 24,000
>> addresses+ teachers addresses
>> (I can write scripts to setup email accounts imported from text files in
>> batches)
>>
>> I was thinking of running Linux 6.1, Coldfusion 4.5 and MySQL for the
>> database
>> (I could run clustercats and spread the load over multiservers for
>> Coldfusion - is this likely to be necessary)
>> Apache 1.3.6 for the web server
>> Sendmail 8 for email
>>
>> There is of course day time usage and evening usage for pupils doing
>> homework etc.....
>> Parents may also connect for information + the internet could bing in
>> other users
>> (there may also be a chat area)
>>
>> My question is how many email pop boxes can I put on 1 server?
>>
>> How many concurrent connetctions will a server cope with for http
>> requests?
>>
>> (Say the server is a PIII 700 512Mb Memory Hardware RAID)
>>
>> Anyone any ideas on this, or could point me in the right direction.
>>
>> Many Thanks
>>
>> Tony
>> -
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