x64 bit hardware will run Exchange 2003 on 32 bit Windows

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

SABARISH — Wed, 13 Aug 2008 11:21:28 GMT

can u please tell me clearly... Can AMD Athlon 64-bit will run in windows xp x64-bit or x-86 ?

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

Exchange — Mon, 13 Feb 2006 23:16:59 GMT

Mike,

I am not 100% sure I understand your question but:

E12 will NOT run on IA64 at all. It will run on x64. Additionally, seeing that clustering relies on MS Clustering Service, which is not present on non-Enterprise Windows, Enterprise is required for clustering to work.

Here is more on the E12 and 64 bit story:

http://blogs.technet.com/exchange/archive/2005/12/29/416613.aspx

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

Mike Burns — Mon, 13 Feb 2006 20:55:45 GMT

I have a question about clustering. We have Exchange 2003 on a cluster setup with server 2003 enterprise. Our understanding the only way cluster could work right was with enterprise. Now Exchange 12, will it work with a cluster setup somehow? Does it require 2003 enterprise? My research with HP says that only IA64 can support 2003 server enterprise for 64 bit. So what is right? Can exchange 12 run without enterprise in a cluster setup? Or can enterprise run on a regular X64 machine?

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

Joe Vivona — Tue, 31 Jan 2006 04:08:10 GMT

If E12 only runs on 64-bit, what will happen to the next version of SmallBizServer. Is the 32 bit version of that dead now ? A ton of clients who run SBS, would never normally use 64 bit hardware (nor do they want to buy it). So if we're now going to require SBS clients go to 64 bit, then I can't see SBS continuing on as a product (especially since Windows 32-bit is still going to be produced, but now SBS can't use it ??). Please explain or point me to a SBS resource that might be able to.

Thanks

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

Lubomir Hozak — Thu, 08 Dec 2005 18:37:47 GMT

Nice to here, but what about the Exchange System Manager not running on WinXPx64 or Vistax64? Maybe they would be running fine if they would be avaliable in some Xadminpack.msi, but the admins must start the big setup of Exchange Server which doesn't work on x64bit OS. :( Does anybody care about it?

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

David Espinoza — Tue, 22 Nov 2005 08:19:34 GMT

Stefan I see AG posted Bob Muglia’s Keynote address that gives you the back ground for more resons why moving to 64 bit is a good idea for Exchange stay tune we will be posting lots more on the subject. The intend of my blog was not to talk about E12 64 bit.

Also Adam currently it is too soon to discuss any plans around 128 or 256 as both Intel or AMD have not talk about any plans yet about making any chips, so for now we are moving to 64 bit and will deal with 128 when a chip comes out. Also we do use manage code now so we think we would be ready if and when 128 bit shows up.

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

Adam Gates — Mon, 21 Nov 2005 17:44:50 GMT

Where E12 is made for a 64-bit platform: What happens to the old 32-bit code?

When servers goto 128 or 256-bit what will happen to the code?

When you write E12 do you keep in mind that 128 or 256-bit systems might be coming along before E12 has completed it's lifecycle?

Would it make sense to make the code in a way that is ready for the future?

re: Exchange 12 64bit only

AG — Mon, 21 Nov 2005 11:55:35 GMT

Bob Muglia’s Keynote address at the Microsoft IT Forum on November 15:

We are also focusing on the next version of Exchange next year, codenamed Exchange 12. That will also be 64-bit only. The reason we have chosen to do this with Exchange is because like database, messaging is an environment that can take advantage of all of the memory that 64-bit opens up. We found that Exchange 12 has tremendously different performance characteristics than Exchange 2003 because of the incremental memory that is available to 64-bit. We found that there is a 70% reduction in the IOs required for Exchange 12. That makes us a different beast in terms of the performance characteristics. Today’s Exchange systems typically require the highest performance SAN-based systems to provide the scalability that major organisations need. With Exchange 12 and the incremental memory, the IO throughput is dramatically reduced. You may choose to continue to run it on a SAN, but the kind of IO subsystems and throughput needed will be reduced dramatically with Exchange 12. As we move forward, based on Exchange 12, our new generation solutions such as Small Business Server and Central will also be 64-bit only. We are planning on shipping those in the 2007 timeframe.

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

Stefan — Sun, 20 Nov 2005 22:19:57 GMT

A few weeks ago someone write here an articel about the topic that you need an DVD-reader to install E12 and gave some really funny reasons that this should be no problem in the future and now it is mentioned that you need 64 bit and no reasons are mentioned, funny...

re: x64 bit hardware will run Exchange 2003 on 32 bit Windows

David Espinoza — Sun, 20 Nov 2005 11:48:35 GMT

Yes Peter it is true, we will only have a 64 bit version of E12.