Managing Storage Backends on Huawei

Querying a Storage Backend

Mon, 01 Jan 0001 00:00:00 +0000

Run the following command to obtain the help information about querying a backend.
```
oceanctl get backend -h
```
Run the following command to query a single storage backend in the default namespace.
```
oceanctl get backend <backend-name>
```
Run the following command to query all storage backends in the specified namespace.
```
oceanctl get backend -n <namespace>
```
Run the following command to format the output. Currently, json, yaml, and wide are supported.

Deleting a Storage Backend

Mon, 01 Jan 0001 00:00:00 +0000

Do not delete a storage backend when a volume management operation is being performed on it.

Example of Deleting a Backend

Run the following command to obtain information about a storage backend.

oceanctl get backend

The following is an example of the command output.

NAMESPACE NAME PROTOCOL STORAGETYPE SN STATUS ONLINE URL 
huawei-csi backend-1 roce-nvme oceanstor-san xxxxxxxxxxxxxxxxxxxx Bound true https://192.168.129.157:8088 
huawei-csi backend-2 roce-nvme oceanstor-san xxxxxxxxxxxxxxxxxxxx Bound true https://192.168.129.158:8088

Run the following command to delete the specified storage backend.

Adding a Storage Backend Certificate

Mon, 01 Jan 0001 00:00:00 +0000

CSI allows you to add a storage certificate to use the TLS/SSL protocol to encrypt data transmission channels, improving the security of communication with storage devices.

Prerequisites

A certificate has been created. Take OceanStor Dorado as an example. For details about how to create a certificate, click here .

Example of Creating a Certificate

Prepare a certificate file in advance, for example, cert.crt.
Run the following command to obtain information about a storage backend.

Deleting a Storage Backend Certificate

Mon, 01 Jan 0001 00:00:00 +0000

Procedure

Run the following command to obtain information about a storage backend.

oceanctl get backend

The following is an example of the command output.

NAMESPACE NAME PROTOCOL STORAGETYPE SN STATUS ONLINE URL 
huawei-csi backend-1 roce-nvme oceanstor-san xxxxxxxxxxxxxxxxxxxx Bound true https://192.168.129.157:8088 
huawei-csi backend-2 roce-nvme oceanstor-san xxxxxxxxxxxxxxxxxxxx Bound true https://192.168.129.158:8088

Run the following command to obtain information about the certificate of the specified storage backend.
```
oceanctl get cert -b backend-1
```
The following is an example of the command output.