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Windows Server Forum / Exchange Server / Design / January 2006Physical Memory
Hi, Just done a simple migration from Mx5.5 to MX2003, 1 MX 5.5 site with 3 MX servers, moved all mailboxes onto one new windows 2003 Adv & MX Ent(running 1 x.400 & 1 SMTP connection, hosting 1500 mailboxes)server, all works OK except that the server was spec up by a company & it has 16GB of physical memory, my question can Exchange Enterprise utilise this memory space or was it just a waste of money. Was this a waste of money and should we have a server running windows 2003 standard & Exchange 2003 ent I have edited boot.ini with the /3GB /USERVA=3030 Set registy entry for HeapDeCommitFreeBlockThreshold to 40000 Regards Jim "16GB of physical memory, my question can Exchange Enterprise utilise this memory space or was it just a waste of money." Read: http://support.microsoft.com/kb/827281/en-us "Exchange Server does not support instancing, Physical Address Extension (PAE), or Address Windowing Extensions (AWE). Therefore, 4 GB of RAM is the maximum amount of memory that an Exchange Server computer can efficiently use." Draw your own conclusions. > Hi, > [quoted text clipped - 14 lines] > > Jim Who wants 12GB of memory then!!!!!!!!!!!!!!!!! > "16GB of physical memory, my question can Exchange Enterprise utilise this > memory space or was it just a waste of money." [quoted text clipped - 28 lines] >> >> Jim Hold onto it. You can use it when you upgrade to Exchange 12. > Who wants 12GB of memory then!!!!!!!!!!!!!!!!! >> "16GB of physical memory, my question can Exchange Enterprise utilise [quoted text clipped - 29 lines] >>> >>> Jim So this is future proofing then!!!!!!!!!!!!!!!!!! > Hold onto it. You can use it when you upgrade to Exchange 12. > [quoted text clipped - 31 lines] >>>> >>>> Jim One thing to be careful of: For Exchange 2003, you don't want to load the PAE kernal.l If windows detects more than 4GB of RAM, and you don't use /NOPAE in the boot.ini, it'll load the PAE Kernel. If you'r running SP1 and don't use the /NoExecute=optout option in the boot.ini, it'll load the PAE Kernel. I'd recommend the following boot.ini options: /3GB /USERVA=3030 /NOPAE /NoExecute=optout > So this is future proofing then!!!!!!!!!!!!!!!!!! >> Hold onto it. You can use it when you upgrade to Exchange 12. [quoted text clipped - 32 lines] >>>>> >>>>> Jim Cheers John, will look into that!! Regards Jim > One thing to be careful of: For Exchange 2003, you don't want to load the > PAE kernal.l If windows detects more than 4GB of RAM, and you don't use [quoted text clipped - 42 lines] >>>>>> >>>>>> Jim |
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