[one-users] infiniband

[Guba Sándor]

Hi

I'm using InfiniBand to make shared storage. My setup is simple: the 
opennebula installdir is shared on NFS with the worker nodes.

- I don't understand what you mean on shared image. There will be a copy 
(or symlink if the image is persistent) on the NFS host and that is that 
the hypervisor will use over the network. Live migrate is available 
beacuse you don't move the image only another host will use it from the 
same spot. With my linux images I have about 30s delay when livemigrate. 
You can use qcow2 driver for shared image.

- I don't understant exactly what you mean on "guest unaware". If you 
mean storage - host connection it has nothing to do with nebula. You can 
use any shared filesystem. NFS uses IPoIB connection.

2012-05-05 19:01 keltezéssel, Chris Barry írta:
> Greetings,
>
> I'm interested in hearing user accounts about using infiniband as the 
> storage interconnect with OpenNebula if anyone has any thoughts to 
> share. Specifically about:
> * using a shared image and live migrating it (e.g. no copying of images).
> * is the guest unaware of the infiniband or is it running IB drivers?
> * does the host expose the volumes to the guest, or does the guest 
> connect directly?
> * I'd like to avoid iSCSI over IPoIB if possible.
> * clustering filesystem/LVM requirements.
> * file-based vdisk or logical volume usage?
>
> Anything, an experiences at all will be helpful.
>
> Thanks
> Christopher
>
>
>
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