You might want to look up the "Universal SAS and ACP Cabling Guide" to see the Best Practice rules for doing this.  As one of the other posters suggested, the resiliency would be better if you swapped a few paths below.  The "Universal...Guide" explains why, defines an algorithm you can follow to come up with a cable plan and shows a handful of examples that should be helpful.  If the doc isn't helpful, tell us (the list and/or NetApp) what's confusing so we can improve it.

BTW, in the doc we tend to say things like "top of stack" and "bottom of stack".  In your example below, one stack is shelf ID's 0-4, and the other stack is shelf ID's 10-18.  Assuming you have shelves in each stack chained together sequentially, you can then define the lowest number in each stack as the top and the highest number in each stack as the bottom (or vice versa; it's arbitrary).  Then follow the rules in the guide.

    Brad.

From: Chaim Rieger <chaim.rieger@gmail.com>
Date: Wed, 16 Nov 2011 17:08:18 -0800
To: Blake Golliher <thelastman@gmail.com>
Cc: <toasters@teaparty.net>
Subject: Re: mpha confusion

Running 732, don't have access to the cluster, physical or cli. Just trying to double check my layout before i ask the local folks to cable her up.

On Nov 16, 2011 4:04 PM, "Blake Golliher" <thelastman@gmail.com> wrote:
Are you running 7.3.3 or later?  What does sysconfig -a tell you?  The
top part tells you if it's Multi-Path HA or Mixed-Path.

       NetApp Release 8.0.1P4 7-Mode: Sat Apr  2 13:41:25 PDT 2011
          .......
       System Rev: A2
       System Storage Configuration: Multi-Path HA
       System ACP Connectivity: Full Connectivity
         ........

-Blake

On Wed, Nov 16, 2011 at 3:27 PM, Chaim Rieger <chaim.rieger@gmail.com> wrote:
> assuming i have two loops (id 00-04, and 10-18)
> 1 4 port sas card (0a-0d)
>
> loop 1
> 00A connects to 001a 0a
> 00B connects to 001b 0a
> ...
> 04A connects to 001b 0b
> 04B connects to 001a 0b
> loop2
> 10A connects to 001a 0c
> 10B connects to001b 0c
> ...
> 18A connects to 001b 0d
> 18B connects to 001a 0d
>
> KEY =
> 00A = Shelf ID 00 Module A
> 001A = Filer 001a/b
> 0a = SAS port A
>
> Its been a long three days of no sleep, but this is mpha, correct ?
>
>
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