Setting 'Optimized' memory mode via Open Manage CLI on Dell R410

Question

Hi,

We have a couple of hundred Dell r410 servers, which I need to switch to use 'optimized' memory mode, as opposed to 'Advanced ECC'. Using the 'omconfig' utility I get:

[root@mms-ldn-01 ~]# omconfig chassis memorymode opmode=optimizer
Error! Specified memory mode not available on this chassis.

[root@mms-ldn-01 ~]#

The reason I want to set this is that the memory was upgraded in these boxes, and now gives an 'Advanced ECC does not work with this configuration' or

something along those lines. I don't want to have to reboot all the boxes to set it in the BIOS - any idea why omconfig is not working here? Alternatively, is it

possible to set the machines to ignore the error via omconfig (rather than once again rebooting the boxes, and going into the BIOS) so we don't need to press 'F1' when they are rebooted?

I'd like to query the chassis to see what the memory mode is, but sadly 'omreport' doesn't seem to support that.

Thanks for any help,

Regards,

Cam

DELL-Chris H · Answer

Cam,

What is the current memory layout? I know you don't have access to the mode, but if you tell me the dimm locations I should be able to tell what it is currently and what will be needed to move to Optimized.

campbellmc · Answer

Hi Chris, 8 x 4GB DIMMs, all slots full. Regards. Cam

DELL-Chris H · Answer

Cam,

What are the dimms you had in originally?

What are the dimms you added?

Both the same kind (RDimm, UDimm)(Quad Rank, dual rank)?

Also, is the BIOS, iDrac, and the Lifecycle controller all at the most recent releases?

The command should work that you entered, unless there is an issue. If you access this single servers BIOS, does it give you the ability to change to Optimizer there? Or is not allowing there as well?

If not you may see if a dimm isn't showing up or one of the above issues is the case.

Let me know what you find.

campbellmc · Answer

Hi Chris,

We originally had 4 x 4GB (dual rank I think) and we replaced these 4 on half of these servers with 4 new 8GB modules (so 32GB per box), and took the 4 x 4GB modules and put them in the other boxes which had the same 4 x 4GB modules, so they now also had 8 x 4. The errors we get are on the boxes with 8 x 4GB.

As to the BIOS version, they are very likely not the latest versions, as they have been running for a couple of years without being upgraded. I'm getting the error below on one machine when I run it:

[root@ra006 ~]# /opt/dell/srvadmin/bin/omreport chassis memory

Memory Information

Error : Memory object not found

[root@ra006 ~]#

The other machine I have installed the OMSA tools is showing me 1.4.8. BTW: I am running the commands on each server individually, rather than via a central server.

Regards,

Campbell

nadogmoney · Answer

Are the OMSA services running? You will get "Error : Memory object not found" if the OMSA services are not running.

I just tried the command you listed initially on an R620 with OMSA 7.1.0 and am getting the same error: "Error! Specified memory mode not available on this chassis."

However if I use syscfg.exe (part of the Dell Deployment Tookit (DTK)) setting the mem mode works fine: "syscfg --MemOpMode=optimizermode"

Looks like an omconfig issue across the borad or a DIMM issue to me.

PowerEdge Hardware General

Setting 'Optimized' memory mode via Open Manage CLI on Dell R410

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