Migrate UCS chassis from one to another UCS Domain

[boskokecman]

Hi, 

I have one UCS domain with two FI 6248UP and two UCS Chassis 5108 with 13 blade servers. First chassis have 8 and second have 5 blade servers. I need to migrate second chassis with 5 blade servers to another FI 6248UP cluster (another UCS domain). Can anyone suggest me what is the correct way to perform this migration with minimal service disruption. 

Best regards

[Walter Dey]

This process is disruptive; plan to do it during a maintenance window !

Moving the chassis and blades is the easiest part !

- is your OS installed on local disk or booted over SAN ?

- are you using native FC ?

Your mac/uuid/pwwn/nwwn pools are different on the target UCS domain ! therefore your service profiles have to be modified ! in case of FC, eventually zoning has to be modified, boot policy,...

- the chassis id must be changed as well (if overlap, or non contiguous)

Walter.

[boskokecman]

OS is installed on local disks. I am using native FC for connecting to storage device. No booting from SAN. 

Can I restore only logical configuration of the first UCS domain to another? What is happened with associated service profiles for all 5 servers on second chassis. I have one template from which we generate service profiles and associate to the servers. Do I need to migrate service profiles to another UCS domain and how? Is restoring logical configuration from first domain enough to preserve service profiles. 

We have 5 esxi host in a vmware cluster in production on those 5 servers. 

Thank you

Bosko 

[Walter Dey]

Hi Bosko

There is no official procedure to migrate SP or SPTemplates between UCS domains (if you use UCS Central with global pools and global SP, yes it can be done).

I would create from scratch a SPTemplate on the target UCS domain, referring to the new pools.

Then derive SP from this template !

Anyway, it means that you will get new initiator pwwn's, and the zoning as well as lun masking / mapping has to changed as well.

I have done this several times ! it takes time ! specially the extensive testing after you believe everything is done !

Good luck !