Fibre Channel (SAN)

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New Contributor
Posts: 2
Registered: ‎01-18-2010

How to chane the port of an ISL trunk

Hi @ all

i need to pull out a fc 32 port module from a 48K director. Here i have two port that make a trunk to connect another swtich.

I want to move these two port to the first module of the director.

There is a procedure to do this?

Thank you,

Sergio

Super Contributor
Posts: 260
Registered: ‎04-09-2008

Re: How to chane the port of an ISL trunk

There is no special procedure. You need to move the cables to similar ports, if possible to the similar ports on blade 1. Else you can connect to any adjacent ports within a 8 port group (0-7, 8-15 etc)

Ensure that trunking is enabled on the 2 ports with portcfgshow, if not enable trunking with portcfgtrunkport

switch:admin> portcfgtrunkport 1/3 1

New Contributor
Posts: 2
Registered: ‎01-18-2010

Re: How to chane the port of an ISL trunk

Ok, thank you. But,

I think to move first the fibre on the port slave and after the fibre on the port master. Can i have some issue? The two switch continue to work without problems?

Super Contributor
Posts: 635
Registered: ‎04-12-2010

Re: How to chane the port of an ISL trunk

You will loose some frames which are on the fly. Under normal conditions the FC stack of the servers will recover these errors and may log some disk errors. It can happens that some servers may hung for some seconds due to timeout values.

If you have two additional ports free on the second switch you can establish first a new trunk and make sure that the cables and SFPs are OK. And in a second step disable the old links.

I hope this helps.

Andreas

Super Contributor
Posts: 644
Registered: ‎03-01-2007

Re: How to chane the port of an ISL trunk

Is very simple.

Create a NEW Offline TRUNK in the other Blade and in a Different OCTET.

e.g. is the Current One in Octet 0-7 you must create the new in the Other Blade 8-15

To avoid conflict, create the Trunk as Alias if the curent is a WWN Trunk.

You cannot create a NEW TRUNK in the same Switch with the same WWN.

If you are satisfied with the responses please mark as 'Answered'.
If not, just let me know I can see to get more info.
I would appreciated if you rate the threads.


Thank you.

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