Re: Dual motherboard rackmount recommendations?
From: General Schvantzkoph (schvantzkoph_at_yahoo.com)
Date: 12/24/04
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Date: Fri, 24 Dec 2004 08:26:08 -0500
On Fri, 24 Dec 2004 01:34:06 +0000, /dev/null wrote:
> Before I begin to respond to this one let me say that for all you guys that
> haven't seen this sort of thing, don't waste our time writing me telling me
> you haven't seen it, that I don't know what I'm talking about, etc... They
> exist, just because your limited exposure to the real world hasn't impressed
> this concept on you doesn't mean it's not real.
>
> I was hoping there were some guys on here who had done this sort of thing
> and could point me to the cost-effective way to get this accomplished. I
> guess those guys just don't hang out here.
>
>> Have you thought this through?
>
> Yes, I've even seen it before. Here's one, but more expensive than what I
> want to pay:
>
> http://www.amtrade.com/ipc/4u_mirror_server_industrial_case.htm
>
>> Even if you found a way to cram to two
>> boards into one case where would you put the second power supply?.
>
> A lot of rackmount cases today come with slot for redundant PS. So instead
> of using it for redundant, you use it for the second board.
>
> These cases are usually speciall-built. It's not like you just take any
> rackmount case and try to squeeze two MB into it, they come made ready for
> two.
>
>> Also
>> the cooling probably isn't going to work.
>
> As shown in the link above, cooling isn't an issue.
>
>> BTW how fast are your PIIIs? An Opteron is 3 to 4 times faster than 1GHz
>> PIII. If you are looking to save space the right thing to do is to replace
>> your dual PIIIs with 1U dual Opterons. Each dual Opteron will replace at
>> least three of your old machines.
>
> First, the PIII is more than fast enough for my needs. That's the whole
> idea of going with Linux, you don't need the latest and greatest rocket ship
> to run a decent server.
>
> Second, let's compare cost. Let's say I can't find a dual MB case cheaper
> than $150, then I go with the 2U cases I've already found for $85. For two
> systems all I'm paying out is $170. I've already got all the rest of the
> hardware. So for two systems I'm out $170.
>
> How much will a dual 1U Opteron cost? You think I can pick it up for less
> than $170? I doubt it. I've already got one dual opteron w/ 4G RAM running
> and don't think I'll need to spend that much money for this project,
> especially considering I've already got the hardware minus the cases.
>
> And what I'm looking for is full machines at low cost. These PIIIs are more
> than enough to do what I need them to do, wasting a lot of money on the
> latest and greatest won't actually bring me any benefit, all that horsepower
> tied down to just one machine.
If you want the cheapest solution find a better rack rather than repackage
your machines. Costco sells a heavy duty wire rack that can hold 20 tower
cases (four shelves * five towers). It costs less than one of your kludge
cases and the floor space it takes will be about the same. It also is on
wheels so you can move the whole assembly around which is a nice plus.
- Next message: Licensed to Quill: "Re: copying ALL files in Knoppix by networking two computers together with a crossover cable"
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