[SOLVED] What does MPIO do?

[Andrewbandrew05]

So I've had two system crashes that appear to stem from one KB2983588 error. It recommends enabling MPIO to fix this. What does MPIO do, and what would possibly be causing my PC to crash and requiring me to set it up?

 

[Colif]

What OS is this?
I can find references to that KB for either 2015 or 2019, so I just curious.
MPIO = Multi Path IO. Seems to be used a lot in servers

 

[Andrewbandrew05]

Its windows 10 1909

 

[Andrewbandrew05]

I am using my PC to run some servers for playing with friends, could that be it?

 

[Colif]

Symptoms
An error event for Event ID 158 is logged. The event indicates that two or more disk devices are assigned identical disk GUIDs.

Note: The above event message has no functionality or performance impact on the client systems. This event provides a warning that multiple disks on the system shared the same identification information (like serial number, page 83 IDs etc.)

Resolution
To resolve this problem if multiple paths are available to the physical disk devices, enable MPIO. If MPIO is enabled, the system can claim the drives and expose only one instance of each disk device when the computer is restarted.

https://support.microsoft.com/en-us/help/2983588/event-id-158-is-logged-for-identical-disk-guids

So I see why you are here although the instruction page linked seems to apply to server 2008

Are you on win 10 Pro?

MPIO = Multi Path IO. It is almost expected you know what it means as finding a description is difficult. Also figuring out how to enable it is as well.

https://support.purestorage.com/Sol..._and_Storage_Settings/Setting_the_MPIO_Policy

 

[Andrewbandrew05]

Im on windows 10 home. I removed a udp port forwarding (that I had not been using just had open in event I would) meant for Nitrox (the Subnautica multiplayer mod) and that has fixed it.