Assume that you have a Windows Server 2008 R2 Service Pack 1 (SP1) or Windows Server 2012-based multi-node failover cluster that uses the Microsoft Device Specific Module (MSDSM) and Microsoft Multipath I/O (MPIO). The following events occur at almost the same time:
- A new instance of an existing device arrives. Specifically, a new path to an MPIO disk is generated.
- MSDSM finishes an I/O request. The request was the last outstanding I/O request.
In this scenario, some cluster nodes crash. Additionally, you receive a Stop error message that resembles the following:
STOP: 0x0000009E (parameter1, parameter2, parameter3, parameter4)
Notes- This Stop error describes an USER_MODE_HEALTH_MONITOR issue.
- The parameters in this Stop error message vary, depending on the configuration of the computer.
- Not all "Stop 0x0000009E" errors are caused by this issue.