Re: SAS Connectivity Monitor: DualPathToDiskShelf_Alert

So there it is...

Look at one stack, connected to 0b/3b
The other stack is connected to 3a/4a

For your best practice,

the SAS Adapter A/C ports should connect IN to the shelf on the SQR port

the SAS Adapter B/D ports should connect OUT to the shelf on the CIR port

I know there was some versions of code that complained if the IN/OUT were
both on like 3a/4a in your case.

Ideally, you should have something like:
Node 1
0a -> top shelf (DS4246, ID0), A side SQR port.
3b -> bottom shelf (DS2246, ID7), B side CIR port
3a -> top shelf (DS4246, ID10), A side SQR port.
4b -> bottom shelf (DS2246, ID16), B side CIR port

Node 2
0a -> top shelf (DS4246, ID0), B side SQR port.
3b -> bottom shelf (DS2246, ID7), A side CIR port
3a -> top shelf (DS4246, ID10), B side SQR port.
4b -> bottom shelf (DS2246, ID16), A side CIR port

The port pairs would look something like this:
0a/3b , 3a/4b, 4a/0d, 0c/3d, 3c/4d, 4c/0b

What you have will work. They are plugged into different adapters on
totally different ASICs.
If you want to the message(s) to stop, you would need to cable a bit
differently.

--tmac

*Tim McCarthy, **Principal Consultant*

*Proud Member of the #NetAppATeam <https://twitter.com/NetAppATeam>*

*I Blog at TMACsRack <https://tmacsrack.wordpress.com/>*




On Tue, Apr 16, 2019 at 2:29 PM John Stoffel <[email protected]> wrote:

>
> Tim> There was a bug about this too. As long as the ports ( a/b ) are
> Tim> not used to the same stack and ports (c/d) are not used on the
> Tim> same stack you are most of the way there.
>
> Hi Tim,
> The suprising thing about these messages is that the system has been
> in this configuration for the past six years, without any shelf
> changes at all.  I did look at the "sasadmin expander_map" output and
> it's all looking good from what I see.  I appended it to the end of
> this email.
>
> Tim> Send the node shell output of
> Tim> sadadmin expander_map
>
> Tim> That would say a lot.
>
>
>
> Expanders on channel 0a:
> Cannot Complete operation on channel 0a; Status Not Available.
>
> Expanders on channel 0b:
> Level  1: WWN 500a0980017df3bf, ID  0, Serial Number '
> SHJ0000000159E4', Product 'DS424IOM6       ', Rev '0191', Slot A
> Level  2: WWN 500a09800187e0ff, ID  1, Serial Number '
> 6000557869', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  3: WWN 500a09800187b3ff, ID  2, Serial Number '
> 6000557833', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  4: WWN 500a098001a1207f, ID  3, Serial Number '
> 6000557821', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  5: WWN 500a098001a15cff, ID  4, Serial Number '
> 6000557819', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  6: WWN 500a098001a11e7f, ID  5, Serial Number '
> 6000557807', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  7: WWN 500a09800196fe7f, ID  6, Serial Number '
> 6000521559', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  8: WWN 500a098001a3cfff, ID  7, Serial Number '
> 6000558124', Product 'DS224IOM6       ', Rev '0191', Slot A
>
> Expanders on channel 3a:
> Level  1: WWN 500a0980016f3c7f, ID 10, Serial Number '
> SHJ000000015A3B', Product 'DS424IOM6       ', Rev '0191', Slot A
> Level  2: WWN 500a098001976d3f, ID 11, Serial Number '
> 6000521420', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  3: WWN 500a098001a3a2ff, ID 12, Serial Number '
> 6000558382', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  4: WWN 500a098001a3c43f, ID 13, Serial Number '
> 6000557584', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  5: WWN 500a098001a3b67f, ID 14, Serial Number '
> 6000558069', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  6: WWN 500a098001a3c1ff, ID 15, Serial Number '
> 6000557613', Product 'DS224IOM6       ', Rev '0191', Slot A
> Level  7: WWN 500a098001a3bb7f, ID 16, Serial Number '
> 6000558083', Product 'DS224IOM6       ', Rev '0191', Slot A
>
> Expanders on channel 3b:
> Level  1: WWN 500a098001a3cd7f, ID  7, Serial Number '
> 6000558124', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  2: WWN 500a09800197263f, ID  6, Serial Number '
> 6000521559', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  3: WWN 500a098001a158bf, ID  5, Serial Number '
> 6000557807', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  4: WWN 500a098001a15aff, ID  4, Serial Number '
> 6000557819', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  5: WWN 500a098001a104ff, ID  3, Serial Number '
> 6000557821', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  6: WWN 500a09800187b63f, ID  2, Serial Number '
> 6000557833', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  7: WWN 500a098001880c7f, ID  1, Serial Number '
> 6000557869', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  8: WWN 500a0980017df53f, ID  0, Serial Number '
> SHJ0000000159E4', Product 'DS424IOM6       ', Rev '0191', Slot B
>
> Expanders on channel 3c:
> Cannot Complete operation on channel 3c; Status Not Available.
>
> Expanders on channel 3d:
> Cannot Complete operation on channel 3d; Status Not Available.
>
> Expanders on channel 4a:
> Level  1: WWN 500a098001a0e8ff, ID 16, Serial Number '
> 6000558083', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  2: WWN 500a098001a3c4ff, ID 15, Serial Number '
> 6000557613', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  3: WWN 500a098001a3b77f, ID 14, Serial Number '
> 6000558069', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  4: WWN 500a098001a3c23f, ID 13, Serial Number '
> 6000557584', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  5: WWN 500a098001a3a3bf, ID 12, Serial Number '
> 6000558382', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  6: WWN 500a098001976ebf, ID 11, Serial Number '
> 6000521420', Product 'DS224IOM6       ', Rev '0191', Slot B
> Level  7: WWN 500a0980017f43ff, ID 10, Serial Number '
> SHJ000000015A3B', Product 'DS424IOM6       ', Rev '0191', Slot B
>
> Expanders on channel 4b:
> Cannot Complete operation on channel 4b; Status Not Available.
>
> Expanders on channel 4c:
> Cannot Complete operation on channel 4c; Status Not Available.
>
> Expanders on channel 4d:
> Cannot Complete operation on channel 4d; Status Not Available.
>

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