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HP Blade C series storage issues

Posted on 2010-09-07
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Last Modified: 2012-06-27
We currently have a HP Blade c3000 chassis.
Installed:
Bay 1: bl460G1
Bay 3: bl480 G1
Bay 5: bl460 G1
Bay 8: PCI Expansion Blade
Bay 2, 4 & 6: Empty

We are looking at buying a SB40c Storage blade however haven't been able to find a definitive answer from our supplier or on HP's website if it is possible to map the SB40c to the BL480 as the PCI Expansion Blade is already attached. The BL480c is our #2 ESX server.

Has anyone had a similar issue or is aware if it is possible?
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Question by:kiwistag
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Expert Comment

by:andyalder
ID: 33625345
Think you're out of luck, HP PCI Express Mezzanine pass-thru card for HP BladeSystem 431643-B21 is required to connect the SB40c to a full height blade but it's also required for the PCI expansion blade. The tape blade or sb40c also requires the PCIe pass-thru for full height blades and  must be installed in the lower bay only (says so in quickspecs) so I think that applies to anything that uses the pass-thru.

I wanted to have a sb40c plus a tape blade on a full height server blade but it's not possible.
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andyalder earned 2000 total points
ID: 33625407
http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c01096820/c01096820.pdf confirms it's not possible since it says the PCI expansion blade is also only supported in the lower slot adjacent to the partner blade, so all three devices that use the PCIe pass-thru only work in the bottom slot.

Guess the tracks aren't there on the backplane to be able to use the upper slot. I haven't been able to find a schematic for the PCIe paths, they conveniently miss them from all the midplane signal path diagrams.
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by:kiwistag
ID: 33659130
It might just be easier to get a PCI-X RAID card & MSA setup...
Even if we had to move the blades around to accomodate both.. :(
Thanks for your help.
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