K220Q Video Ram - XenServer 6.5

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1

I just noticed an oddity with our K2 cards running on XenServer 6.5 The amount of memory for the vGpu profiles appears off.

For example the K220Q profile should have 512mb of video ram as detailed here:

http://blogs.citrix.com/2014/03/31/new-nvidia-vgpu-types-for-citrix-xendesktop-now-supports-the-nvidia-k120q-and-k220q-are-these-the-goldilocks-vgpu/

On the XenServer host we are only seeing 416MB of video ram. Currently our environment contains two HP DL 380 G9s with 4 K2’s. Each host is on 6.5 and running the latest driver 340.57.

This inconsistency has thrown a wrench in the sizing of our environment. Can the amount of video memory for these profiles be adjusted via the CLI??

3

What are you seeing inside the VM if you look in Nvidia Control Panel / System Information

What value is given for dedicated graphics memory?

Don’t forget that vGPU Manager utilises a portion of the GPU’s framebuffer for pagetables to ensure segregation of the vGPU sessions and this is being accounted for in the value presented in XenServer’s CLI.