06-Apr-2021 01:27
Hi
I am working on doing a resource upgrade (add more cpu/memory) on a vcmp ha pair. Tried to find some good info about best practices, but I´ve come up dry..
So, I am thinking of doing it just as a software upgrade.. upgrade the seconday, failing over.. letting it run for a while and then do the primary.
Any problems with using the force offline option during this process? Is HA functionality affected by the difference in resources on the vcmp? any tips?
Solved! Go to Solution.
09-Apr-2021 05:42
As mentioned in the guide you will need to move the guest into the configured state before allocating resources.
Do a tail on ltm log and grep for vcmp then move the guest it to the configured state.
Look for VS_STOPPED->VS_INACTIVE, this indicates that the guest has stopped.
You can then allocate the resources.
There should not be any issues with regards to HA but as always take a UCS for both host and guest.
I also do not see why you will need to move it to forced offline.
You will not be changing any configuration of the configuration objects on the device.
Once resources are allocated move the guest back into the deployed state and you should be good to go
Again do a tail on ltm and grep for vcmp.
Look for VS_STARTING->VS_RUNNING, your guest should be up and running again.
Steps
Hope this helps
*Please note that these are the steps that we followed on our Viprions*
06-Apr-2021 01:58
06-Apr-2021 02:00
This is for a software upgrade, I want to allocate more resources (cpu/memory) to a vcmp. I should have been clearer about that 🙂
06-Apr-2021 02:48
Apologies. I didn't read it properly. Please follow the below steps to add more cores to the vcmp guest.
https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/vcmp-administration-viprion-13-1-0/7.html
force offline option is not needed as you are disabling the guest first and deploying it again.
06-Apr-2021 02:51
I´ve read that one, wondering if there are any things to do for a HA pair. But the lack of info might be the answer 🙂
06-Apr-2021 02:54
This won't affect HA traffic at all. Have done it many times. just add cores on the standby guest first ( by following steps from the above article). Failover to other guest. and then follow same steps on the other unit.
08-Apr-2021 07:06
Do you know if sync will work after standby have been upgraded?
09-Apr-2021 05:42
As mentioned in the guide you will need to move the guest into the configured state before allocating resources.
Do a tail on ltm log and grep for vcmp then move the guest it to the configured state.
Look for VS_STOPPED->VS_INACTIVE, this indicates that the guest has stopped.
You can then allocate the resources.
There should not be any issues with regards to HA but as always take a UCS for both host and guest.
I also do not see why you will need to move it to forced offline.
You will not be changing any configuration of the configuration objects on the device.
Once resources are allocated move the guest back into the deployed state and you should be good to go
Again do a tail on ltm and grep for vcmp.
Look for VS_STARTING->VS_RUNNING, your guest should be up and running again.
Steps
Hope this helps
*Please note that these are the steps that we followed on our Viprions*