This commmit introduces a new bdev type backed up by DAOS DFS.
Design wise this bdev is a file named as the bdev itself in the DAOS POSIX
container that uses daos event queue per io channel.
Having an event queue per io channel is showing the best IO throughput.
The implementation uses the independent pool and container connections per
device's channel for the best IO throughput.
The semantic of usage is the same as any other bdev type.
To build SPDK with daos support, daos-devel package has to be installed.
The current supported DAOS version is v2.X, please see the installatoin and
setup guide here: https://docs.daos.io/v2.0/
$ ./configure --with-daos
To run it, the target machine should have daos_agent up and running, as
well as the pool and POSIX container ready to use, please see the
detailed requirements here: https://docs.daos.io/v2.0/admin/hardware/.
To export bdev over tcp:
$ ./nvmf_tgt &
$ ./scripts/rpc.py nvmf_create_transport -t TCP -u 2097152 -i 2097152
$ ./scripts/rpc.py bdev_daos_create daosdev0 <pool-label> <cont-label>
1048576 4096
$ ./scripts/rpc.py nvmf_create_subsystem nqn.2016-06.io.spdk1:cnode1 -a -s
SPDK00000000000001 -d SPDK_Virtual_Controller_1
$ ./scripts/rpc.py nvmf_subsystem_add_ns nqn.2016-06.io.spdk1:cnode1
daosdev0
$ ./scripts/rpc.py nvmf_subsystem_add_listener nqn.2016-06.io.spdk1:cnode1
-t tcp -a <IP> -s 4420
On the initiator side, make sure that `nvme-tcp` module is loaded then
connect drives, for instance:
$ nvme connect-all -t tcp -a 172.31.91.61 -s 4420
$ nvme list
Signed-off-by: Denis Barakhtanov <denis.barahtanov@croit.io>
Change-Id: I51945465122e0fb96de4326db742169419966806
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12260
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
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