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Beginner

Changing Cluster and Interconnect IP Addresses

Hi all, I'm struggling to find documentation on changing Fabric IP addresses.  I know it has to be done via the CLI but would really appreciate the process to do it.  I need to change the Fabric Interconnect IP addresses to a different network and they are in High Availability mode so there is also a custer IP.

Cheers, Alex

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Beginner

Hi Alex, here's what worked for me:

To change IP for fabric interconnects, login to either one via console:

  1. UCS-A# scope fabric-interconnect a
  2. UCS-A /fabric-interconnect # set out-of-band ip netmask gw
  3. Repeat for the second fabric interconnect.

To change the virtual IP used for system management, this should be in the same VLAN as the individual fabric interconnect IPs:

  1. UCS-A# scope system
  2. UCS-A /system # set virtual-ip

Finally check to see that there are no errors, then actually commit if everything checks out:

  1. UCS-A# commit-buffer verify-only
  2. UCS-A# commit-buffer

Hope this helps!

Message was edited by: Wei Chiang Lim

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Top man, thanks. Will try after the bank holiday and mark as correct when done (sure it is).

Cheers

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Thanks, been a while since I successfully changed it with the command line but unless I'm going mad I don't think that option was in the firmware we had running at the time. Though may well have just missed the option .

Cheers both, Alex

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Hi,

I have same problem. but i want to know if any business impact when i doing this activity.

 

one more thing is can u share me plan of action for this activity carried out.

 

please ...

Thanks in advance:)

 

 

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sachintorne2,

 

What you will be doing is changing the way the Fabrics are accessed.  It should not mean any impact for the rest of the servers besides the impact that can cause any change in the mgmt IP address of any device.

 

If you are running UCSM 2.2, check the release notes cause now, you can assign inband and outbound mgmt IP addresses for UCSM.

 

HTH

 

-Rate All helpful answers.

Kenny

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Beginner

Hi,

Thanks for the reply..

I have question like which ip address i have login?

 i mean cluster IP or individual FI IP?

 

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One normally uses the Cluster IP but for some troubleshooting scenarios you might need to access the individual IP address of an specific fabric, but again, you will normally use the cluster IP.

Rate ALL helpful answers

-Kenny

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Beginner

Hi,

 

Thanks for the reply.

One more help reuire. can u please share me Plan of action for this activity.

Thanks in advance.

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What exactly will you need ?

 

-Kenny

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Hi ,

Thanks Again for the reply.

I wanted to know the Exact procedure / Steps i follow??

Please help me.

Thanks in advance.

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change the IP in the secondary, then the primary and last the cluster IP I would say... but will you be just changing the IP to another one in the same subnet or you will be changing the cluster to another subnet too?

 

-Kenny

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