Hello Nova, Cinder developers,

 

I would like to ask you a question concerns a Cinder patch [1].

 

In this patch, it mentioned that RBD features were incompatible with
multi-attach, which disabled multi-attach for RBD. I would like to know
which RBD features that are incompatible?

 

In the Bug [2], yao ning also raised this question, and in his envrionment,
it proved that they did not find ant problems when enable this feature.

 

So, I also would like to know which features in ceph will make this feature
unsafe? 

 

[1] https://review.openstack.org/#/c/283695/

[2] https://bugs.launchpad.net/cinder/+bug/1535815

 

 

Best wishes and Regards

junboli

 

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