Reconfigure UCS Chassis policy

[Hele Du]

Hi everyone,

My customer has ordered  two new chassis.

Because they only order 1 SFP-H10G-C5M per IOM for new chassis and old policy is 2 link , I must change the chassis discovery policy to "1 link".

From the configuration guide, I must re-ack the chassis after change the chassis policy to 1 link so all of the link can work if i have more then 1 link.

From my point I think it will cause data interrupt .

Do I have an exact understanding?

[Walter Dey · Accepted solution]

Hi Hele

ack the chassis after changing the chassis discovery policy is disruptive.

Any traffic is stopped for about 100 +- seconds. No blade reboot ! Most OS would survive; however, it is higly recommended to this in maintenance window.

2.2.4b introduced however a nice feature, which makes above obsolete:

Per Fabric Interconnect Chassis Reacknowledgment—You can now reacknowledge a chassis per Fabric Interconnect. This allows you to maintain connectivity to the chassis through the other Fabric Interconnect.

Walter.
 

[Hele Du]

Hi Walter,

Thank you for your information, its very useful.

The Pre fabric chassis Re-ack is very good, but for us we do not upgrade firmware at  this time.

Well, I will change the policy in a maintenance window.

[Keny Perez]

If the question is answered, please mark the question as such for future users to see you found the info you needed; otherwise, let us know if you still have more questions.

-Kenny