Expend physical RAM memory on hyperflex servers

[MilosPavlovic9823]

Hello,

My name's Milos. I have a few questions regarding the expansion of physical RAM memory on 3 hyperflex servers.

I haven’t had a chance to do that before.

What is the best way to do RAM expansion by inserting additional RAM on all servers?

Do I have to open a Cisco TAC for this action or not?

Is it ok to follow this link to do this and not to compromise the operation of VMs on the hyperflex cluster: https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HX_series/HX240c_M4/HX240c/replace.html ?

What I should pay special attention to in this action?

Please help and opinion.

Thanks in advance,
Milos

[Eric Rose]

You can expand the physical memory in the server by placing the HX node into HX maintenance mode and then powering down the servers. You don't need a TAC case to perform this operation but if you need support they are available for you. 

Here is some documentation about replacing DIMM which might help as well.  https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HX_series/HX240c_M4/HX240c/replace.html#92448 

[MilosPavlovic9823]

Hi Eric,

Thank you very much for your response. Yes it is that procedure that is on the link you sent.

I asked the TAC, and they told me the same.

Thank you very much once again.

Best regards,

Milos

[Kirk J]

Please make sure to dcom the servers before adding the RAM, and then re-ack them to trigger re-discovery.

Thanks,

Kirk...