Si desea configurar un servidor de SQL Server en 32 bits y desea que el sistema operativo reconozca 32GB de RAM, puede tomar en cuenta las siguientes consideraciones.

Si usted desea mantener el sistema operativo en 32 bits, entonces su opción es tener Windows 2003 Enterprise configurado con PAE. Consulte lo siguiente:

PAE Mode http://www.microsoft.com/whdc/system/platform/server/PAE/pae_os.mspx
PAE is the second method supported to access memory above 4 GB; this method has been widely implemented. PAE maps up to 64 GB of physical memory into a 32-bit (4 GB) virtual address space using either 4-KB or 2-MB pages. The Page directories and the page tables are extended to 8 byte formats, allowing the extension of the base addresses of page tables and page frames to 24 bits (from 20 bits). This is where the extra four bits are introduced to complete the 36-bit physical address.

Windows supports PAE with 4-KB pages. PAE also supports a mode where 2-MB pages are supported. Many of the UNIX operating systems rely on the 2 MB-page mode. The address translation is done without the use of page tables (the PDE supplies the page frame address directly).

Para configurar PAE en Windows 2003 puede consultar este artículo http://msdn.microsoft.com/en-us/library/ms791485.aspx

Este es un ejemplo de cómo configurar PAE en Windows 2003

Primer Boot.ini:

[boot loader]

timeout=0

default=multi(0)disk(0)rdisk(0)partition(1)\WINNT

[operating systems]

multi(0)disk(0)rdisk(0)partition(1)\WINNT=” Windows Server 2003, Enterprise” /fastdetect

Cambie el Boot.ini de la siguiente forma:

[boot loader]

timeout=0

default=multi(0)disk(0)rdisk(0)partition(1)\WINNT

[operating systems]

multi(0)disk(0)rdisk(0)partition(1)\WINNT=” Windows Server 2003, Enterprise” /fastdetect /PAE

Si lo desea realizar por medio del commando Bootcfg utilice lo siguiente:

bootcfg /raw "/pae" /A /ID 1

 

Saludos,

Eduardo Castro – Microsoft SQL Server

http://comunidadwindows.org

Costa Rica

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