New MSA2012FC Shows Volumes Multiple Times!?

[Neil Sutton]

Hi Guys,

Just got an MSA2012FC to connect to our HP C3000 Blade System.
I have it connected via a single HP/Brocade Blade San Switch, using two fibre channel cables going to the SAN.
Two of our blades have QLogic HBA's installed, I have created several VDisks and some volumes via the HP Web utility on the MSA2012.
I have assigned LUN0 to 'All Other Hosts' and I can see it in "Computer Management > Disk/Storage Management" when I logon at one of the blades (Windows Server 2008)

However, the volumes I have created on this LUN (a single 250GB and 1GB) each show 4 times in disk management...
It appears to be working if I select one instance of each and bring it online and format it, but I guess something isn't configured quite right.

Any ideas what I've done wrong ?

Thanks!

[Johan Guldmyr · Accepted solution]

Hi, you need to have a multipathing software installed :)

HP MPIO FF DSM should do the trick.

What it does is it hides the paths you're not using.

http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=421495〈=en&cc=us&prodTypeId=18964&prodSeriesId=421492&taskId=135

For MPIO downloads.

As this is your first question on the board, please don't forget to give poinst on answers :)

[Neil Sutton]

Hi Johan,

Thanks for your reply.
I have already installed the MPIO feature that comes with Windows Server 2008.
Do I still need the extra HP stuff that you linked to?
Bit of a newb when it comes to SAN so still figuring this stuff out :)

[Johan Guldmyr]

Yeah no worries :)

Yeup, you're right.
The MPIO needs the DSM from the provider to know what to do with the devices :)

The MPIO manager gives you a little info but the path failover should be fairly automagic.

[Neil Sutton]

Thanks Johan,
Just configured MPIO and now the disks are showing correctly :)

[Johan Guldmyr]

Awesome :)

If you want to test the failover of paths, the only way I know of is to actual plug a cable and see if it switches over.

Also don't forget to give points to posts :p