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mrah

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12 years ago

M

mrah

3 Posts

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73452

July 9th, 2014 10:00

MPIO issue with Windows Server 2012 R2

Env:

Dell PowerEdge M950 using 2x Broadcom 57712-k Dual Port 10GbE NDC-k on WS 2012 R2

Equallogic PS6110 SSD

HIT 4.7.0

Issue:

Although the server has two NICs dedicated to iSCSI, only one path is used on all volumes, some volumes using one NIC, the others using the second NIC.

I also see repeated messages in the EventLog of the form:

Added device to \Device\MPIODisk13. DumpData contains the current number of paths.

then

Path 77020001 was removed from \Device\MPIODisk13 due to a PnP event. The dump data contains the current number of paths.

Any idea on what maybe wrong ?

Thanks

  • mrah

    3 Posts

    4626

    0

    Posted July 10th, 2014 02:00

    Sorry, forget to mention that we have several Equallogic in a group organized in pools. So a volume can and do span several members.

    On the other servers on WS 2008 R2,  a new path is created as soon as there is traffic on the volume.