Versoes windows server 2008 r2

Enabling this technology reduces the overall size of the system virtual address space and therefore system resource maximums. For more information, see What is 4GT. Limits on physical memory for bit platforms also depend on the Physical Address Extension PAE , which allows bit Windows systems to use more than 4 GB of physical memory.

The following table specifies the limits on memory and address space for supported releases of Windows. Unless otherwise noted, the limits in this table apply to all supported releases. The following table specifies the limits on physical memory for Windows Server Windows Server is available only in X64 editions. MVP Award Program. Video Hub Azure. Microsoft Business. Microsoft Enterprise. Browse All Community Hubs.

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Did you mean:. Sign In. Planning the Upgrade Before you start in-place upgrade your servers, make sure you plan your upgrade and make sure you have all the information, to avoid surprises at the end of the migration.

The Windows Server Upgrade Center helps you with a checklist which includes, for example, the following: What software and roles are installed on the server and are they supported and working with newer versions of Windows Server.

I recommend doing a software inventory and check if the applications and roles are supported. Have some tests ready to check if the application still works after the upgrade. It is a good thing to run through these tests before the upgrade as well, so you can confirm everything is working correctly. If it is a physical server, do you have drivers and firmware updates for the new Windows Server version available?

Think about backup software and antivirus, you might need to uninstall these during the update process and reinstall it after the upgrade is done. Make sure your server is up-to-date and fully patched before doing an in-place upgrade. Planning the timeframe for the upgrade. In-place upgrades take some time, make sure you have a long enough maintenance window planned. Also make sure you communicate the maintenance window, so users know that the application or service is not available.

Make sure you have a backup of the server before you start the upgrade process, and make sure you can also restore from that specific backup. If possible, test the upgrade process with a non-production server. Make sure you have enough disk space for the upgrade. Gather your system information before the upgrade. Collect system information Before you start the upgrade process you should also collect the following system information. This article aims to show the differences between the editions of Windows Server family.

These functions do not require much memory. When planning the installation of such system it must been take into account that the functions of failover cluster and AD Federation Services are functions of the Enterprise edition or Datacenter edition. It supports cluster Load Balancing Network , but does not support failover clustering.

Windows Server Enterprise The Enterprise edition will be indicated for large companies running heavy applications like SQL Server or Exchange Server , these applications will require more memory than the Standard edition supports.

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