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shelves for P2000

Posted on 2014-02-05
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Last Modified: 2014-02-06
Hello, can I use AP838B "HP P2000 LFF Modular Smart Array Chassis" as an **Add-on** enclosure for my LFF P2000 G3, or do I need to get the AP843B HP P2000 Dual I/O LFF Drive Enclosure?

I already have the main P2000 LFF unit (AW593A SAS), just need to add more LFF disks..

Maybe I can just add a AP844B (HP P2000 LFF Drive Enclosure I/O Module) to the AP838B in order to use it as an add-on?

In the quickspecs for AP838B it says "NOTE: Will accept one or two controllers or Disk Enclosure I/O modules"

Thank you!
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Question by:sk391
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andyalder earned 500 total points
ID: 39839838
AP838B + 2 * AP844B + 2 * 0.5m mini-SAS cables = AP843B. It's invariably cheaper to buy the AP843B with the interface cards and cables included than buy them separately, especially as you would end up having to use the 2m mini-SAS cables instead of the included 0.5m ones. You need both interface cards or one of your controllers would not connect to the disks so it would stop being fault tolerant.
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by:sk391
ID: 39839864
Thank you but I thought there is only one expansion port at the back of the P2000?

You saved me the shipping costs of returning the AP838B, thank you!

It is indeed a bit cheaper with list price, but these days there are some promos for specific regions so the AP838B turns out to be ~$ 1,000 cheaper than the 843B!
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by:andyalder
ID: 39840116
Each controller in the P2000 has an expansion port, so two in total that go to the expansion chassis(s). With only 1chassis you can't get the wiring wrong, with multiple ones one controller goes to the top enclosure then daisy-chains down, the other goes to the bottom enclosure and then daisy-chains up.

The 2m mini-SAS to mini-SAS cables are 407339-B21, one for each controller. Still can't find the 0.5m ones even on HP's spares database.
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by:sk391
ID: 39840891
another excellent answer, thanks!
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