topic Re: Verify Shelf Cabling in ONTAP Hardware

Verify Shelf Cabling

dtrujillo63 — Mon, 19 Nov 2012 20:10:01 GMT

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

Re: Verify Shelf Cabling

CCOLEMAN_ — Mon, 19 Nov 2012 20:48:13 GMT

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.

Re: Verify Shelf Cabling

dtrujillo63 — Mon, 19 Nov 2012 22:40:11 GMT

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

Re: Verify Shelf Cabling

ogra — Tue, 20 Nov 2012 06:49:57 GMT

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

Re: Verify Shelf Cabling

BDANDRUS — Tue, 22 Jan 2013 16:50:27 GMT

Did this ever get answered?

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

Re: Verify Shelf Cabling

AGUMADAVALLI — Tue, 22 Jan 2013 17:03:29 GMT

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

Re: Verify Shelf Cabling

BDANDRUS — Tue, 22 Jan 2013 17:24:54 GMT

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

Re: Verify Shelf Cabling

AGUMADAVALLI — Tue, 22 Jan 2013 17:32:19 GMT

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

Re: Verify Shelf Cabling

ogra — Wed, 23 Jan 2013 14:05:07 GMT

Hi Brian,

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

Cheers!

@bakshana

Re: Verify Shelf Cabling

BDANDRUS — Wed, 23 Jan 2013 23:04:55 GMT

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

Re: Verify Shelf Cabling

mcgue — Thu, 24 Jan 2013 02:16:20 GMT

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

Re: Verify Shelf Cabling

ogra — Thu, 24 Jan 2013 06:50:17 GMT

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!

Re: Verify Shelf Cabling

matthes138 — Tue, 19 Jan 2016 21:40:38 GMT

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

Re: Verify Shelf Cabling

SeanHatfield — Wed, 20 Jan 2016 15:23:19 GMT

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.

Re: Verify Shelf Cabling

ratnarajah29 — Tue, 13 Apr 2021 04:37:37 GMT

Hi dtrujillo63

Is there a link to draw the diagram as shared? Thanks in adv

Re: Verify Shelf Cabling

Fabian1993 — Tue, 13 Apr 2021 08:31:11 GMT

Hi @ratnarajah29

you can simply use VISIO and the Shapes from http://www.visiocafe.com/netapp.htm, to build the Diagram with your Hardware.