Microsoft KB Archive/256326

= Cluster Server Cannot Use Disk Beyond Device Number 25 =

Article ID: 256326

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Enterprise Edition

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This article was previously published under Q256326



SYMPTOMS
When you are using an array of 30 disks, Disk Administrator can access, partition, format, and assign drive letters to any drive in the system. With Microsoft Cluster Server installed, you can use any disk provided that the disk has a device number in the range of from 0 to 25.



CAUSE
This limitation is caused by a hard-coded value for the disk resource DLL, which should be set to maximum disks (which equates to 100).



RESOLUTION
To resolve this issue, apply the hotfix described in the following Microsoft Knowledge Base article:

251007 Some Cluster Disks Are Not Available After Installing SP6



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0.



MORE INFORMATION
This fix also includes the modifications described in the following Microsoft Knowledge Base article:

252974 Error Message: System Process - Lost Delayed-Write Data

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB256326

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