On May 6, 2002 10:47 am, you wrote:
> Hi,
>
> I'm planning to use LTS to replace all the developer workstations in my
> (small) company. There are presently 5 developers and will grow to about 10
> in 3-6 months. (and around 20 in about an year). Therefore I would like to
> introduce LTS at the very beginning.
> The software which the devs would be using:
> 1. A browser, most probably Opera
> 2. Mail Client: any decent one
> 3. Java IDE: either Forte4J or JBuilder
> 4. Servlet Engine: Tomcat 4
> 5. Either Openoffice or MS Office (using Crossover office, or inside
> VMWare) 6. Oracle 9i (only one instance for all the devs)
> 7. VMWare: Definitely Need this to test clients (which will be Win32
> based). Every dev would be having 64MB VM (either Win98 or W2K Pro). The
> client is actually very light, so hopefully this shouldn't be a big burden.
> 8. MAYBE (in the future), there might be a shared instance of Weblogic /
> JBoss running multiple applications (one for each dev)
>
> They would be developing and testing application on the server itself.
> There would be one instance of Oracle running which would be shared by all
> the devs, but everything else they would be running their own copy. (even
> VMWare)
If you are doing anything intensive, I would put the Oracle on its own box.
It wouldn't need to be all that high end. Athlon 1600m with 256MB of ram or
so should do it. This would at least allow it to be upgraded quite easily.
> I was thinking of running everything at the server. This way, I'm hoping
> that I'll be able to reduce the client workstation cost to almost nothing
> (say Pentium 166Mhz or so). Moreover, I can safely assume that everybody
> would be running all the apps at the same time, and doing some compiling
> too.
>
> Now, the server specs I had in mind were as follows.
>
> Tyan Tiger MPX Motherboard + 2 X Athlon MP 1800+
> 1-1.5 GB of DDR RAM
> RAID Array
> 100Mbps Switched network
>
> As far as the RAID array is concerned, I was thinking of RAID 10 (4 disks
> of around 18/36 GB each). The issue is that are SCSI (10K rpm) disks a must
> or would IDE disks (7200 rpm) do?
>
> So would these specs suffice for say 10 developers. And how should I plan
> my server so that I make less investment (for 5 dev) right now and upgrade
> the server later. I was thinking of going with a dual board but only a
> single processor in the beginning and say less RAM.
>
> Moreover, would it be better to say separate it into 2 servers (both single
> CPU) and have RAID 1 in both the boxes. Then I might separate VMWare and
> say Oracle in the second server and use the first one for regular work.
>
> Please note that this is for a cash strapped company, so I cannot go for
> Xeons (4-way) or any other high-end hardware. That is why I'm even thinking
> of using IDE drives (knowing fully well that the SCSI interface will serve
> me better in a server environment).
> And in your opinion how many dev's would I be able to support with the
> above mentioned configuration.
I looked at the RAIDZone drive arrays a while ago when I was doing video
systems (with Drastic Technologies www.drastictech.com ). The RAIDZOne stuff
works beautifully up to about 50MB/s. Anything beyond that and you need to
get into CMD, Eurologic or Digidata stand alone controllers. The Adaptec
cards couldn't hold a candle to the performance offered by these (Fibre in,
SCSI 160 out the back - 100MB/s writes!) The RAIDZone boxes uses an array of
fast IDE drives. Try to talk to a guy named Vas. The parent company is
Consensys out of the Toronto, Canada area.
I don't know if I have muddied the waters but I hope this helps.
--
Patrick Rea
Toronto, ON, Canada
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