KB2908783 – Data Corruption Occurs On iSCSI LUNs In Windows

Another niche scenario bug is fixed in this update by Microsoft, affecting the following Windows versions/editions:

  • Windows 8 & Windows Server 2012
  • Windows 7 & Windows Server 2008 R2

Symptoms

Consider the following scenario:

  • You have a computer that is running Windows 8, Windows Server 2012, Windows 7 Service Pack 1 (SP1), or Windows Server 2008 R2 SP1.
  • You create iSCSI connections to multiple iSCSI targets which are storage arrays.
  • There are frequent iSCSI session connections and disconnections, such as logical unit number (LUN) arrivals and removals.

In this scenario, a silent read/write data corruption can occur on an iSCSI LUN.

There is a bunch of links for downloading updates to resolve the issue, depending on your OS and architecture. See the original post by Microsoft for links.

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