Article ID: 193779 - View products that this article applies to.
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When using Disk Administrator to add or modify drive letters on a Cluster Server disk that has multiple partitions, changes committed to the system are not properly represented when cycling the disk from offline to online status. Restarting the server does not necessarily correct the issue and drive letters that have been used and then deleted are no longer available for assignment.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/152734/EN-US/ )How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.