Create a Data Source for Data Synchronization - Cloud Backup

Alibaba Cloud Cloud Backup provides data synchronization for unstructured file storage. To synchronize data for the first time, you must add source and destination data sources in the Cloud Backup console. Supported data source types include Object Storage Service (OSS), Cloud Parallel File Storage (CPFS), and OSS-Compatible Storage.

Prerequisites

You have activated the Alibaba Cloud Cloud Backup service, which is free. The data synchronization feature is in public preview and is also free of charge.
You have granted the required permissions and have installed and activated the client. For more information, see Preparations.

Procedure

Log on to the Cloud Backup console.
In the left-side navigation pane, choose Synchronization > Data Synchronization.
In the top navigation bar, select a region.
On the Data Source List tab, click Create Data Source.

In the Create Data Source panel, configure the following parameters and click OK.

Object storage service (OSS)

Parameter	Description
Source Type	The type of the data source. Select Alibaba Cloud Object Storage Service (OSS).
Data Source Name	Enter a custom name for the data source.
Use HTTPS	Specifies whether to transfer data over HTTPS. HTTPS provides higher security than HTTP.
OSS Bucket	Select the OSS Bucket to synchronize. Cloud Backup automatically retrieves a list of buckets in the current region.
OSS Endpoint	Select the endpoint of the OSS Bucket from the drop-down list. For more information about OSS endpoints in each region, see Regions and endpoints. If you synchronize data over the public internet, select the public endpoint of the bucket. For example, the public endpoint for the China (Beijing) region is `oss-cn-beijing.aliyuncs.com`. If you synchronize data over an Alibaba Cloud VPC, select the internal endpoint of the bucket. For example, the internal endpoint for the China (Beijing) region is `oss-cn-beijing-internal.aliyuncs.com`.

Cloud parallel file storage (CPFS)

Parameter

Description

Data Source Name

Enter a custom name for the data source.

CPFS Mount Path

The mount path of the CPFS file system. For example, /cpfs/00d0******1b-000001.

If you have not added a POSIX mount target or installed the CPFS-POSIX client, do so first.

You can run the following commands on the CPFS cluster management node to query the status of the CPFS cluster instance and the mount path.

Query the status of the CPFS cluster instance

Command
```
mmgetstate -a
```

Sample output

 Node number  Node name                            GPFS state  
---------------------------------------------------------------
           1  cpfs-00d0******1b-000001-qr-001  active
           2  cpfs-00d0******1b-000001-qr-002  active
           3  cpfs-00d0******1b-000001-qr-003  active
           4  iZbp******haqrZ              active

Query the CPFS mount path

Command
```
df -h
```
Sample output

Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                 3.8G     0  3.8G   0% /dev
tmpfs                    3.8G   16K  3.8G   1% /dev/shm
tmpfs                    3.8G  528K  3.8G   1% /run
tmpfs                    3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/vda1                 40G  7.3G   33G  19% /
tmpfs                    763M     0  763M   0% /run/user/0
00d0******1b-000001  3.6T  564M  3.6T   1% /cpfs/00d0******1b-000001

In the preceding output, /cpfs/00d0******1b-000001 is the CPFS mount path.

OSS-compatible storage

Parameter	Description
Source Type	The type of the data source. Select OSS Compatible Storage.
Data Source Name	Enter a custom name for the data source.
Use HTTPS	Specifies whether to transfer data over HTTPS. HTTPS provides higher security than HTTP.
OSS Bucket	Enter the bucket name provided by your OSS-compatible storage provider.
OSS Endpoint	The endpoint provided by your storage service provider.
AccessKey ID	The AccessKey ID and AccessKey Secret from your storage service provider. Obtain the access key pair from the administrator of your OSS-Compatible Storage. The access key pair must have the permissions to read data from the OSS-Compatible Storage.
AccessKey Secret

Related operations

After you add the source and destination data sources, you can create a synchronization plan.

On the Data Source List tab, find the target data source, click More in the Actions column, and perform one of the following operations:

Actions

Description

Edit Data Source

Modify the configuration parameters of the data source.

Unregister Data Source

If you no longer need to synchronize data, you can unregister the data source.

On the Sync Plan tab, delete all synchronization plans that are associated with the data source.
On the Data Source List tab, find the target data source, and click More > Unregister Data Source to unregister it.
In the View Client Groups panel, delete the client that is used for the synchronization task.
On the machine where the client is installed, uninstall the Cloud Backup client.