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Directly attached fibre channel cabling query

Hey there,

can someone clarify the cabling I need to attach a Fibre Array ( Avid MediArray2) to a server ( DL580 G2 ) with 2 HBA's please?

I've got the array with dual ports in the back, both marked in / out.
I've got 2 x Qlogic 2200 HMA's.( single port)
I've got win3k server.

I can't figure out what the best or proper way to cable it is.

I am presuming that I run a cable from Qlogic 2200 1 to "IN" on first controller on array and run a cable from QLogic 2200 2 to "OUT" on second controller on array.

In my mind this is making a loop between server and storage.

Is this correct?

I've attached a diagram to explain.

Ideally, if I can figure out how and if it will work - I'd use one controller ( on array box) to attach to half the drives, and one for the other half.
Then present that as one logical storage area but I/O split.

Is that possible with my existing hardware and WIn3k standard?

cheers, Tom


FCv1.1.jpg
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tomglondon
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tomglondon
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2 Solutions
 
andyalderSaggar makers bottom knockerCommented:
You use in on both controllers by the looks of it, out is for daisychaining to a second disk unit.

http://aviddssupport.avid.com/pdf/storage/mediarrayII.pdf
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andyalderSaggar makers bottom knockerCommented:
Ph, and it's unlikely you can split disks over channels, normally LUNs are presented out of both controllers and you use MPIO (which you'll have to download from Microsoft) in a dual path setup to stop you seeing the LUNS / logical drives twice. There's probably a software guide on their support site that tells you how to create logical units and present them to your host bus adapters.
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tomglondonAuthor Commented:
Hi there Andy,

thanks for the advice.

I've cabled it using 2 x HBA both linked to the "in" on each side of the array.
I've cabled it using "in" and "out" on a single controller on the array.

Neither hook up seems to present the disks reliably. I'll try find the MPIO on the micciesoft site.

cheers.

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tomglondonAuthor Commented:
Just an update.

I cabled it using 1 x HBA to the "in" port - server booted and the card didn't see any devices.
I restarted server with cable from single HBA to the "out" port instead, and this time booted - saw all disks and I can create a volume from within windows.

I think that using both cards will need me to mask LUNS on one of the cards in order for windows to work with it- as you mentioned buty that's a bit out of my experience and understanding.
I couldn't find anything appropriate on the ms site.

Just to recap for anyone that is after the same info - single HBA - single cable - to one controller using the "out" or transmit port.


Thanks for your suggestions.
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andyalderSaggar makers bottom knockerCommented:
Yup, they could mean out goes to host rather than in, the manual doesn't show what's written on the connectors.
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tomglondonAuthor Commented:
Thanks for answering me but did not lead me to solution.
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