Fault Tolerance Fails if Only One Partition on Boot Drive (96254)


The information in this article applies to:

  • Microsoft LAN Manager 2.1a
  • Microsoft LAN Manager 2.2
This article was previously published under Q96254

SYMPTOMS

If the drive being mirrored is the boot drive and contains only one partition, fault tolerance in LAN Manager versions 2.1a and 2.2 does not properly recover from a crash of the primary drive. Running FTBOOT.EXE on the mirrored drive does not configure the drive properly and the system hangs when you reboot.

CAUSE

Earlier versions of FTBOOT were not tested for the case of one primary partition and no extended partitions. The pointer to the extended partition was not cleared, which corrupted one of the internal records that fault tolerance uses and in turn affected DISKFT.SYS.

RESOLUTION

Microsoft has confirmed this to be a problem in LAN Manager versions 2.1a and 2.2. This problem was corrected in the latest US Service Pack for LAN Manager. For information on obtaining this update, query on the following word in the Microsoft Knowledge Base:

LMPATCH

Modification Type:MajorLast Reviewed:9/30/2003
Keywords:kbnetwork KB96254
©2003 Microsoft Corporation. All rights reserved.