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 Post subject: 3par 8000 configuration
PostPosted: Tue May 11, 2021 10:43 am 

Joined: Tue May 11, 2021 10:34 am
Posts: 4
Hi All

I have a 8200 system but need to set the W19 variable, does anyone know how to do this?
i know the command but not sure how you work out the number?

Thanks
Ace


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 Post subject: Re: 3par 8000 configuration
PostPosted: Tue May 11, 2021 11:39 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1570
Location: Europe
Why are you doing this and do you know/understand the impact?

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 Post subject: Re: 3par 8000 configuration
PostPosted: Wed May 12, 2021 6:05 am 

Joined: Tue May 11, 2021 10:34 am
Posts: 4
Hi

Yes, this isnt on a live system.
i just want to understand how its calculated if possible.

thanks


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 Post subject: Re: 3par 8000 configuration
PostPosted: Wed May 12, 2021 10:30 am 

Joined: Mon Sep 21, 2015 2:11 pm
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Location: Europe
I don't think it's calculated.

Legacy systems(with 7-digit serial) it was the last digits in the serial. For the later systems I would guess it's simply provided and documented to ensure that is unique in the world.

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 Post subject: Re: 3par 8000 configuration
PostPosted: Thu May 13, 2021 2:22 am 

Joined: Tue May 11, 2021 10:34 am
Posts: 4
So from a guide i have its says

"They both use a w19 variable which equals the system ID used to create the WWNs"
Use the following command.
Whack> set perm w19=0x7E1F9
Note: The prom will reflect the value you set with the above command

But im sure "0x7E1F9" is going to be unique to each system.

i think for now i will just do a node recovery.


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 Post subject: Re: 3par 8000 configuration
PostPosted: Fri May 14, 2021 3:07 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1570
Location: Europe
Yes. The w19 = system ID which controls the WWNs and all WWNs needs to be unique in the world.

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