On Thu, 2017-03-02 at 12:37 -0500, yzhu wrote:
> request.c: 244:nvmf_process_connect: ***ERROR*** Subsystem 
> 'nqn.2016-06.io.spdk:cnode1' does not allow host 
> 'nqn.2014-08.org.nvmexpress:NVMf:uuid:0916cbc8-b8db-4d6e-9c89-
> cd26cadddfa9'

The error is telling you that your initiator (nqn.2014-
08.org.nvmexpress:NVMf:uuid:0916cbc8-b8db-4d6e-9c89-cd26cadddfa9) does
not have permission to access the subsystem.

> 
> 4. Configurations
> [Subsystem1]
>    NQN nqn.2016-06.io.spdk:cnode1
>    Core 0
>    Mode Direct
>    Listen RDMA 10.10.16.10:4420
>    Host nqn.2016-06.io.spdk:init
>    NVMe 0000:04:00.0

In your configuration above, you'd specified that only a host
(initiator) with NQN nqn.2016-06.io.spdk:init is allowed to connect.
The "Host" directive is optional, so just delete it and it will allow
any initiator to connect.