Microsoft Windows NT 4.0 Guide Instrukcja Użytkownika Pobierz pdf (Strona 18)

Microsoft

Windows Server

™

2003 White Paper

Windows NT 4.0 Server Upgrade Guide 13

Additional disk space is recommended for domain controllers to support the Active Directory

database and log files. Use the following guidelines to determine how much disk space to allocate

for an Active Directory installation:

• On the drive that will contain the Active Directory database template, NTDS.dit, provide available

space equal to 10 percent of the existing database size, or at least 250 MB.

• On the drive containing the Active Directory ESENT transaction log files, provide at least 50 MB of

available space.

• For optimum performance, store the Active Directory database, Active Directory log files, and

Windows Server 2003 operating system on separate physical hard disks.

• If you plann to install additional services on the domain controllers, allocate sufficient processor,

memory, and disk resources. For more information about domain controller capacity planning, see

the "Planning for Domain Controller Capacity" section of the Windows Server 2003 Deployment

Guide available from on the TechNet Web site at

http://www.microsoft.com/technet/prodtechnol/WindowsNetServer/Evaluate/CPP/Reskit/ADSec/.

• Use a hardware assessment table to document hardware and software information for each

domain controller. For a sample worksheet to assist you in documenting hardware information,

see the "Hardware Assessment" document in the Windows Server 2003 Deployment Kit

Assessing and Documenting Server Upgrade Order

Your upgrade plan should identify and document the domain controllers in the existing Windows

NT 4.0 domain. Include in the documentation the role that each domain controller holds in the

domain, and the services that each domain controller provides. Be sure to identify servers that

provide Remote Access Service (RAS) and LAN Manager Replication (LMRepl), because

upgrading to Windows Server 2003 affects these services.

For a worksheet to use in documenting servers and services, see the "Domain Controllers and

Services Documentation" section in the Windows Server 2003 Deployment Kit

Analyze the servers to determine the order in which the various servers should be upgraded. This

analysis should take the following into consideration:

• Number of servers to be upgraded or decommissioned.

• Applications running on the various servers.

• Services running on the various servers.

Number of Servers

Calculate how many servers will be involved in the upgrade. Determine an upgrade priority for

each server. For example, if the plan is to perform an in-place domain upgrade, the Windows NT

4.0 primary domain controller (PDC) is near the top of the list, because it must be upgraded

before the domain can be upgraded to Active Directory.

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Microsoft Windows NT 4.0 Guide Instrukcja Użytkownika Strona 18