Re: State of play for RDMA on Luminous

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Hi Florian,

On Wed, 23 Aug 2017 10:26:45 +0200, Florian Haas wrote:

> - In case there is no such support in the kernel yet: What's the current
> status of RDMA support (and testing) with regard to
>   * libcephfs?
>   * the Samba Ceph VFS?

On the client side, the SMB3 added an SMB-Direct protocol extension for
RDMA. Quite a bit of work needs to be done to get this supported in
Samba: https://wiki.samba.org/index.php/Samba3/SMB2#SMB_Direct

...
>   * tcmu-runner?

Also on the client side, LIO offers support for iSCSI Extensions for
RDMA transport, which should be usable alongside a tcmu-runner
backstore: http://linux-iscsi.org/wiki/ISCSI_Extensions_for_RDMA
I'm not aware of any testing of this combination though.

Cheers, David

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