You may experience unexpected behavior on a Windows Server 2008-based computer that has more than 32 paths to an MPIO disk

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Article ID: 956472 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You have a computer that is running Windows Server 2008.
  • The computer uses multipath I/O (MPIO) disks.
  • The system recognizes and uses more than 32 paths to a disk.
In this scenario, you may experience unexpected behavior. For example, you may receive the following Stop error message:
Stop 0x0000007e (parameter1, parameter2, parameter3, parameter4)
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

CAUSE

This problem occurs because MPIO does not support more than 32 paths to a disk.

WORKAROUND

To work around this problem, make sure that there are no more than 32 paths from the Windows Server 2008-based computer to each disk.

Properties

Article ID: 956472 - Last Review: August 20, 2008 - Revision: 1.0
APPLIES TO
  • Windows Server 2008 Standard
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
Keywords: 
kberrmsg kbtshoot kbexpertiseinter kbprb KB956472

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