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What needs to be done after adding memory to rp4440

 
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elmond
Occasional Advisor

What needs to be done after adding memory to rp4440

Hi,

I need to transfer memory from one rp4440 to another rp4440. Is there anything I should do (such as OS reconfiguration) once memory is moved?

I appreciate any advice as I'm not very familiar with HP hardware changes.

Thanks a lot.

Elmond
6 REPLIES 6
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Mahesh Kumar Malik
Honored Contributor
Solution

Re: What needs to be done after adding memory to rp4440

Hi Elmond

Generally nothing is required to be done after upgrading the memory. But if swap space is low, secondary swap may be created.

Regards
Mahesh
DCE
Honored Contributor

Re: What needs to be done after adding memory to rp4440

Hello Elmond

There is nothing special that needs to be to physically move the memory. You do need to be aware of the swap space. You should have ample on the the system you are taking the memory from, but you may actually need to add some to the system getting the extra memory.

If the swapmem_on kernel parameter is set to 1, then the system receiving the memory will work just fine. If it is set to 0, then you will need to add physical swap equal to the size of the memory module you are moving ( assuming the total swap is less than physical memory)
HGN
Honored Contributor

Re: What needs to be done after adding memory to rp4440

Hi

Like other who have mentioned here, there is nothign specific you need to do, make sure you can see the memory and also want to make necessary changes ot swap size if required.

Rgds

HGN
Raj D.
Honored Contributor

Re: What needs to be done after adding memory to rp4440

Hi Elmond ,

After adding the Physcical memory , you should add that much swap in the system , to make the equation proper.

after creating the lvol of that size , add in the /etc/fstab ,

add the following line in /etc/fstab

/dev/vg0x/lvolx ... swap pri=0 0 0

# swapon -a

check swap space with:
# swapingo -tm

Monitor the swap usage , with
# vmstat 5 10 ( see pi/po value should be zero, that indicates no excessive swap usage , and system performing ok ).

Cheers .
Raj.

" If u think u can , If u think u cannot , - You are always Right . "
elmond
Occasional Advisor

Re: What needs to be done after adding memory to rp4440

Thanks a lot for your help, folks.

I really appreciate it.
elmond
Occasional Advisor

Re: What needs to be done after adding memory to rp4440

This was resolved.