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Date: Thu, 19 Jun 2003 08:39:19 -0400
To: Tomcat Users List <tomcat-user@jakarta.apache.org>
Subject: Re: [OT] best hardware config for Tomcat
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References: <Law12-OE49yY0QUUBPc0003803d@hotmail.com>
From: John Turner <tomcat-user@johnturner.com>
Message-ID: <oprq0lfthhxvhn30@mail.aas.com>
In-Reply-To: <Law12-OE49yY0QUUBPc0003803d@hotmail.com>
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I won't get into specifics, but I can tell you that if you are planning to 
put this server into production, and run Oracle on it, a single hard disk 
is the WORST thing you can do, for a whole range of reasons.

In most cases, CPU and RAM are not bottlenecks...disk is.  When in doubt, 
get more and faster disk, even if it means less RAM and less CPU.

At a minimum you will want RAID 1...better yet, two systems disks mirrored 
with RAID 1 containing your OS and systems files, and then a RAID 5 array 
for Oracle.

I strongly suggest you consult a professional.  Do not try to spec this out 
on your own, it is clear that you are not familiar on some key points of 
hardware provisioning.  This isn't bad, I am just suggesting that you 
should find someone who is familiar, and will recommend an adequate system 
for you.  Making the wrong decision now could harm your efforts in the 
future.

If you're planning on putting this server into production, and selling the 
services on this server to other people, it would be unethical to make 
promises about uptime and reliability unless you at least have a RAID 
array, redundant power supplies, a 4-hour window service contract, and 
preferably a duplicate system for hot backup.

John

On Thu, 19 Jun 2003 12:25:47 +0530, Antony <antonypaul24@hotmail.com> 
wrote:

> Hi all,
> If it is not the place to ask this question forgive me Please any one
> tell me a place to ask this question.
> I want to know the most suitable hardware configuration for Tomcat. We
> have to run both Tomcat and Oracle 8i on it. It  is business( intranet )
> application with about 10 users accessing at starting but planning to 
> take
> it to 60 users in future. Then we can increase the RAM to accommodate new
> users. I assume by increasing RAM we Tomcat can service more users. Am I
> right ?
> I am not an admin or hardware expert. We plan to buy an assembled
> system. We can afford only Intel based system. I have several questions. 
> Do
> Tomcat need the processing power of dual processor PIV or single Xeon
> processor ?. What kind of memory shall I use SDRAM or DDR ?  Do Tomcat 
> need
> large amount of memory or high speed memory ?.We plan to use a single 
> hard
> disk. What type of hard disk is best for this configuration ?. SCSI or 
> IDE ?
> When I lloked at the Intel site I have seen different categories like
> server,mainstream ,work station, performance etc. Remember I can't 
> recommend
> any latest high cost technology.
> At present three developers are using a single Pentium 4 based system
> with 512 MB of SDRAM with Oracle and Tomcat running. It runs fine in it. 
> We
> dont have conducted any stress test on it. We dont know to use JMeter or
> something else. I have to give the config details within 2 days.
> Any comments will be apprecited.
>
> Regars
> Antony.
>
>
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