I have problems with a lot of drivers on 64bit.  I have had too be a little
bit picky on hardware selection, usually building my own servers with Tyan
hardware as they seem to do a good job of choosing 64bit linux friendly
hardware(HP, and Dell are ok too).

I have to say that 64bit linux is much more widely supported than 64bit
windows.  I actually have to run a small cluster of win2k3 remote desktop
servers because I can't put enough RAM in for my application in a 32bit
machine and 2k3 64bit sucks b*lls and wont run my app, nore my database
connector.  My RDP servers just sit there practically idle CPU-wise but have
high RAM usage.

64bit linux has some issues with RAID hardware, as well as both the HP
Powermonitor for a rackmount UPS and an APC unit.  I can run the 32bit
versions but also have to have some 32bit libraries and run those apps with
some fancy scripting to get everything going.

I had some issues with some video input card drivers with 64bit for a
zonealarm server but got that worked out, just needed a patch to get the
drivers to compile on 64bit.  I find that 64bit linux allows me to get
20-30% better performance out of this zonealarm server(dual operteron dual
core) after recompiling a few things for 64bit, 64bit is very good for
multiple stream video encoding.




On Thu, May 8, 2008 at 4:36 PM, Nils Breunese (Lemonbit) <[EMAIL PROTECTED]>
wrote:

> Daniel Denson wrote:
>
> > Actually, there are still a lot of issues when running a 64bit server
> > system as some software has not been ported up or requires a specific
> > library that has not been ported to 64bit.    Mostly, it is libraries
> > that are 64bit and 32bit programs that can't use them.
>
> I haven't had any problems with servers. Desktops are another case, with
> still no 64-bit Flash plugin and no 64-bit Java plugin and things like
> that.
>
> Nils Breunese.
>
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