FAS and V-Series Storage Systems Discussions

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Verify Shelf Cabling

Does the cabling below look correct? This is a FAS2240-2 with a DS4243 Shelf.

13 REPLIES 13
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Re: Verify Shelf Cabling

Very close!

Left Controller Square > Top Shelf Module Square

Right Controller Square > Bottom Shelf Module Square

Left Controller Circle > Bottom Shelf Module Circle (flipped)

Right Controller Circle > Top Shelf Module Circle (flipped)

You flipped the end of the stack perfectly, but the way you cabled it would mess you up when you need to hot add a shelf.

ACP looks perfect.

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Re: Verify Shelf Cabling

Are you sure? According to the documentation, circles are connected to squares and squares are connected to circles.

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Re: Verify Shelf Cabling

Correct the Circle <-> Square relationship needs to be maintained.

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Re: Verify Shelf Cabling

Did this ever get answered?

I have inherited the same setup but I'm pretty sure it is cabled incorrectly.

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Re: Verify Shelf Cabling

Run the config advisor or wire gauge to find the health of your HA pair. That will give complete answer.

You will not be able to download the config-advisor or wire gauge, please engage the Professional Services or NetApp.

thank you

aK G

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Re: Verify Shelf Cabling

Um yes I can:

http://support.netapp.com/NOW/download/tools/config_advisor/

Not sure that will help though. Seems odd that nobody can just look at the picture and say yes or no...

o.O

Brian

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Re: Verify Shelf Cabling

Run the config advisor, it will help no doubt. You will also get a detailed report too what is bad in the environment.

thank you

AK G

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Re: Verify Shelf Cabling

Hi Brian,

Can you please provide more details which diagram are you referring at ?

Cheers!

@bakshana

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Re: Verify Shelf Cabling

The first one that is a photo with the red and blue lines.

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Re: Verify Shelf Cabling

The bottom diagram of page 36 has the answer - https://library.netapp.com/ecm/ecm_get_file/ECMM1280392

The only difference is that you only have one disk shelf instead of a stack.  Your first picture matches the SAS cables per the diagram in the PDF. 

Also run the config advisor, it is always a good tool to run to cross check and verify.

Take care,

Tim

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Re: Verify Shelf Cabling

Hi Brian,

Yes that's correct. 

There are 2 factors for doing the SAS cabling :

1) Square goes into Circle

2) Last 2 Ports of the Stack are attached to the controller in reverse order. ( If you have a single disk in the stack you simply reverse it there only).

Hope it helps!

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Re: Verify Shelf Cabling

Im looking for SAS cabling of a FAS2220 with 2 controllers to a single DS2246-R5

 

Any documentation/diagrams to help me understand the best practice for cabling shelf’s

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Re: Verify Shelf Cabling

Its laid out pretty clearly in the setup poster for that platform:

https://library.netapp.com/ecm/ecm_get_file/ECMP1149275

 

Or just follow the diagrams at the top of this thread.

 

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