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Managing storage devices
10.2. Setting up the NVMe™/RDMA controller using nvmetcli

10.2. Setting up the NVMe™/RDMA controller using nvmetcli

You can configure the Non-volatile Memory Express™ (NVMe™) over RDMA (NVMe™/RDMA) controller by using the nvmetcli utility. The nvmetcli utility provides a command line and an interactive shell option. For more information, see the nvmetcli and nvme(1) man pages on your system.

Prerequisites

Verify that you have a block device to assign to the nvmet subsystem.
Run the following nvmetcli operations as a root user.

Procedure

Install the nvmetcli package:
```
# dnf install nvmetcli
```

Download the rdma.json file:

# wget http://git.infradead.org/users/hch/nvmetcli.git/blob_plain/0a6b088db2dc2e5de11e6f23f1e890e4b54fee64:/rdma.json

Edit the rdma.json file and change the traddr value to 172.31.0.202.
Setup the controller by loading the NVMe controller configuration file:
```
# nvmetcli restore rdma.json
```
注意
If the NVMe controller configuration file name is not specified, the nvmetcli uses the /etc/nvmet/config.json file.

Verification

Verify that the NVMe controller is listening on the given port and ready for connection requests:
```
# dmesg | tail -1
[ 4797.132647] nvmet_rdma: enabling port 2 (172.31.0.202:4420)
```
Optional: Clear the current NVMe controller:
```
# nvmetcli clear
```

10.2. Setting up the NVMe™/RDMA controller using nvmetcli

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