Re: Dupal Opteron on Sarge
Forgot to add one thing.
As for the Power Supplies (PS). I tried everything from 400W to 550W and
came to the conclusion that mostly 400W is fully acceptable for most
machines (1-4 disks). I know that the shop assistants often recommend
stronger Power supplies (after all thats their business ;-).
Bear in mind that the heat has to go somewhere ;-)
Best regards
Nils Valentin
Tokyo / Japan
http://www.be-known-online.com
> O.K I guess I have to take the risk that Lord Sauron will flame me for
> what I say next ;-)
>
> I would rather recommend you a 2xCPU MB instead of a single CPU MB
> You will easily find many 2xCPU MB out there and you may want to consider
> the following:
>
> - most have only 32 bit PCI slots, look for 64 bit PCI slots and the max
> bus speed (133mhz)
> - server boards come (optional) with onboard scsi cards
> - you may still find additionally 4xSATA & IDE on the same MB
> - (optional) SCSI raid card
> - (optional) server admin card
>
> If you take this all into conclusion you will probably opt for the
> S2882UG3NR or a similar board from another maker
> http://www.newegg.com/Product/Product.asp?Item=N82E16813151151 *no scsi
> http://www.newegg.com/Product/Product.asp?Item=N82E16813151152 * with scsi
> http://www.newegg.com/Product/Showimage.asp?Mode=&Type=&Image=13-151-152-01.jpg%2C13-151-152-02.jpg%2C13-151-152-03.jpg%2C13-151-152-04.jpg%2C13-151-152-05.jpg&CurImage=13-151-152-02.jpg&Description=TYAN+S2882UG3NR-D+Dual+Socket+940+AMD+8131+Extended+ATX+Server+Motherboard+-+Retail
>
> Note the scsi raid card socket (option), white and in the middle left)
>
> Having the 64 bit pci bus also allows you to navigate real HEAVY loads
> between scsi discs and the CPU & Memory.
>
> Regarding CPU I would probably choose the 246 or 248 ($240-310) which are
> slightly cheaper than the 252 and, lets face it, the CPU speed alone wont
> really change so much on the systems performance.
>
> http://www.newegg.com/Product/Product.asp?Item=N82E16819103412
> http://www.newegg.com/Product/Product.asp?Item=N82E16819103433
>
> Another concern is the heat those CPU beasts produce (90W each). You may
> want to find a cooler solution which doesnt grill you or the CPU and also
> doesnt make you death. (I am sitting next to such a beast right now ;-)
>
> Most cooling systems go up to the 246 or 248. Finding one for the 252
> might be difficult. I had a hard time finding a cooler which would do his
> job for the 248 while still allowing me to hear my own voice ;-).
>
> I would invest the saved money (compared to the 252) into Memory or SCSI
> and use the SATA for a backup solution. I prefer SCSI, as for me it has
> shown to be reliable in the long run and still outperforms most SATA/IDE
> setups.
>
> Note that 2xCPU systems are not twice as fast as single CPU systems. The
> SMP setup does have a bit of a overhead on your OS, so expect something
> like 0,8x the speed of a single CPU system.
>
> What the 2xCPU system gives you however, is the ability to handle heavy
> load. It can handle obviously more requests than a single CPU system. It
> will also take advantage of the hyperthreading bus *communication bus
> between the CPUs.
> This means that CPU1 can *borrow Memory from CPU2 if it is required for an
> application.
>
> For the case I would choose the CM Stacker. It does Unfortunately not
> offer the redundant PS, but you can put 2x PS from the maker of your
> choice. It wont be hot swabable, you will have to switch the plugs
> yourself.
> http://www.newegg.com/Product/Product.asp?Item=N82E16811119042
>
> The design is also quite appealing I believe. If you do opt for the CM
> Stacker make sure to get the Optional Cross floor fan.
> http://www.newegg.com/Product/Product.asp?Item=N82E16800887011
> It will make sure to get the heat out of the case, and that silently.
>
> If you prefer to show off the case, there is also a sie window available
> http://www.newegg.com/Product/Product.asp?Item=N82E16811999760
>
> I hope that I could make some valid points to make your decision easier
> for your next system.
>
> The system above is more expensive than "Lord Saurons" setup but it adds a
> lot of options and is really a sound system (not to say a beast ;-)
>
> I usually buy the parts not all in one go, but as required.
>
> Newegg as suggested by "Lord Sauron" does give a good service and I can
> back him up with that.
>
> I currently have 2 Opteron systems online which should be accessable for
> the public.
>
> 1) 203.143.127.108
> 2) 203.143.127.98 (testing)
> 3) 203.143.127.99 (from October)
>
> Do you have the possibility to take an opteron system for a testride ?
> (You might find that some shops might let you try a system)
>
> Best regards
>
> Nils Valentin
> Tokyo / Japan
> http://www.be-known-online.com
>
>
>
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