One vdisk appears as four drives to host

[Robert Mara]

On EVA 5000, I created a 2 terabyte vdisk and presented it to a host server. The host server is an HP DL585 with four AMD Opteron x64 CPUs and running Windows Server Enterprise x64 Edition. I rescanned the drives and it created *four* disks, each 2 terabytes.

Why am I getting four disks instead of two?

I've done this same thing several times before with DL360 servers running two 32-bit Xeon CPUs and Windows Server 2003 Standard Edition, so I'm familiar with this operation.

Thanks in advance.

[Robert Mara]

My bad...
Why am I getting four disks instead of ONE?

[Stephen Kebbell]

Hi,

is the MPIO DSM correctly installed? Then you should see a total of 5 entries in device manager under Disk Drives (4 for the 4 paths to the disk and 1 for the Multipath disk device) and only one entry in Disk Management.

MPIO Download for Windows (x64)
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=421494&prodTypeId=18964&prodSeriesId=421492&swLang=8&taskId=135&swEnvOID=1113

Regards,
Stephen