Questions about PC Requirements

[Miguel Koren O'Brien de Lacy]

Ignacio.;

Good point about updates for longer than 12 months. I would also suggest 
Red Hat ES (there was a post on this list a few days ago about excellent 
performance achieved with this version) because updating packages is 
important, migrating large servers is a real pain and. the more you 
customize it the worse it is. Julian's mail about load balancing the 
servers is very important and the right way to go. Unfortunately I 
haven't had any experince with Opteron.

Julian's post about average mail sizes is closer to what I experience 
with our customers, with larger number of users.

Miguel
Consultex Informatica

greyhair wrote:

> Just my humble opinion, but you may want to look into
> Redhat  ES (basic $350) if you are looking into Redhat
> for the simple reason that you will get updates for longer
> than 12 months. A bit more effort is put into optimsing the
> kernel and other packages, too.
> Also, have you thought about the AMD 64bit opteron
> chip, if you are going to continue down the RedHat trail?
> (has anyone?)
>
> greyhair.
>
> PS:  wow, ~13 mbit/sec of pure mail.  That sure dwarfs my
> poor little T1!!
>
> Ignacio M. Sbampato wrote:
>
>> Julian & Miguel,
>>
>> thanks for your answer. The average size was calculated by other people.
>> Today i did a little research, and came with a more accurate average 
>> size:
>> 60 KB.
>>
>> The email traffic of the network is splited through different SMTP 
>> servers,
>> so i think that with two or three boxes we'll solve the problem. 
>> According
>> to Miguel's message, a dual-CPU 2.4GHz Xeon with 2GB ram and SCSI 
>> disk will
>> virus-scan over 1,000,000 messages per day.
>>
>> Maybe with 3 boxes running a similar configuration we'll be fine, right?
>> It's a little expensive, but the only solution if we want to use
>> MailScanner+AV to analyze such huge traffic.
>>
>> What do you think?
>>
>> Ignacio
>>
>> ----- Original Message -----
>> From: "Julian Field" <mailscanner at ECS.SOTON.AC.UK>
>> To: <MAILSCANNER at JISCMAIL.AC.UK>
>> Sent: Monday, October 27, 2003 6:47 PM
>> Subject: Re: Questions about PC Requirements
>>
>>
>>
>>
>>> At 21:29 27/10/2003, you wrote:
>>>
>>>
>>>> Ignacio M. Sbampato wrote:
>>>>
>>>>
>>>>> My question is about the requirements of a PC running MailScanner +
>>>>>
>>>>>
>> 1(one)
>>
>>
>>>>> antivirus engine, if:
>>>>>
>>>>> * We're using it over Sendmail.
>>>>> * The server process 100,000 email messages per hour
>>>>> * Every attachment has an average size of 150 KB (a lot of ADSL 
>>>>> users)
>>>>> * It's running over Red Hat 9, without any other important processes.
>>>>>
>>>>>
>>> 2.4 million messages per day with that large an average message size 
>>> will
>>> require several PC's to do it.
>>> An average of 150Kb is large, I had an average of about 18kb when 
>>> testing
>>> with our mail traffic.
>>> You'll have to spend some time tuning sendmail as well, you may find 
>>> Exim
>>> faster as you'll need several dedicated boxes to do this traffic 
>>> anyway.
>>> -- 
>>> Julian Field
>>> www.MailScanner.info
>>> Professional Support Services at www.MailScanner.biz
>>> MailScanner thanks transtec Computers for their support
>>> PGP footprint: EE81 D763 3DB0 0BFD E1DC  7222 11F6 5947 1415 B654
>>>
>>>
>>>
>>
>>
>>
>>
>



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