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IBM x3650m4 and IBM Storwize V5000 - Direct Connection

Hi,

Need advise on this.

I wanted to get IBM x3650m4 Server and IBM Storwize V5000 as my SAN.

I want to know whether can the server be directly connected to Storwize V5000 via Fibre Channel without using SAN Switch.

If it can be connected directly, how many servers can I connect to V5000 giving it has 8 fibre channel ports.
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hlmarine
Asked:
hlmarine
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2 Solutions
 
Gerald ConnollyCommented:
Yes, the Storwize does support direct connect, with eight ports you are looking at 4 dual connected servers
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
IBM has an excellent set of documentation in their RedBooks:
X3650m4 http://bit.ly/1iaKN6v
V5000 SAN: http://bit.ly/1hwXw5J (Redbooks Search Results)

And, to answer your question directly: http://bit.ly/1lmdekN
That is the diagram for direct attaching via Fibre Channel. However, I am not sure exactly what a "file module" is. :)

When going this route your IBM contact should have the correct configurations that one can run with.

Philip
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hlmarineAuthor Commented:
Someone from IBM representative called me. They said they don't encourage to connect the host and SAN switch via Fibre Channel directly. And they will not support if anything goes wrong even though both my servers and SAN are from IBM .

Anyway anyone of you did try with direct connection? And so far how is it?

I find it a waste of money to get a SAN Switch if I can connect directly from my 2 servers to SAN Storage.
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
There is a good reason why they suggest that. :)

Philip
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Gerald ConnollyCommented:
The IBM documentation says that direct connect IS supported (see IBM Website), there may be some restrictions on the HBA's supported, but the Red Books are the place to sort all that out.

As direct connection IS supposedly supported then what HP calls a "Flat SAN" is perfectly reasonable thing to do and should be fine.

Using this configuration does not preclude you from upgrading to a full fabric (ie with switches) in the future.
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hlmarineAuthor Commented:
Thanks Gerald and Phillip for the kind responses. I going to try out the direct connection without the SAN Switch on FC. Hopefully it won't go any wrong.
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
JetStress and SQLIO are two utilities that can be helpful for burn-in processes.

Philip
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