Product Functions
Last Updated：2021-03-04
Overview of Support Features of Cloud Disk Service
The CDS currently has rich product features in billing management, disk management and snapshot management. You can view the details of the operations required in the overview below.
| Type | Feature name | Feature description | Disk type supported |
|---|---|---|---|
| Charging management | Renew Cloud Disk | The services will be suspended automatically after the CDS instance of the "monthly/annul" payment mode expires. Within seven days after expiration, the service is automatically shut down and the data are retained, and a renewal notification is sent to users. After the renewal, the system will automatically recover the use of original services. The CDS data resources expiring at least 7 days ago are cleared and cannot be recovered. The users should re-purchase the services. | All |
| Billing change | The charging mode supports the switching between the prepayment and post-payment. | All | |
| Snapshot charging method | Cloud disk snapshots are billed by post-payment, and the snapshot data generated by CDSs are managed in the form of "snapshot chain" | All | |
| Disk management | Create a CDS cloud disk. | While creating the cloud server BCC, you can create the CDS cloud disk, or create the CDS cloud disk for the created cloud server BCC. Or you can separately create the CDS cloud disk, and then mount it to the designated cloud server. | All |
| Mount CDS | You can mount the created CDS cloud disk to the cloud server BCC. | All | |
| Format Cloud Disk Service | The created CDS cloud disk is in the offline state by default, and you should format it, including partition of the disk and creation of a file system. You can format disks in Linux system and Windows system. | All | |
| Uninstall Cloud Disk Service | You can uninstall the mounted disk. | All | |
| Expand Cloud Disk Service | You can scale up the disk online based on the original capacity of the disk. After scaling up the disk, you can adjust the partition and file system of the disk in Windows environment or Linux environment. And the Linux environment supports the two adjustment methods of MBR and GPT. | All | |
| Change Cloud Disk Service type online | You can change the disk type of the created CDS cloud disk online according to your own business requirements. The CDS supports online change of the disk types of prepaid or post-paid cloud disks, and meanwhile is compatible with the system disk and the data disk. | All | |
| Release Cloud Disk Service | If you no longer need the current CDS cloud disk, you can release the disk. | All | |
| Performance burst capability | The disk CDS of Baidu AI Cloud first released the performance burst capability domestically. The customers can burst and use the disk CDS beyond the cloud disk performance limitations for a period of time. For example, the IOPS performance of the purchased disk is 200, and can burst to 1300 for a period of time. | All | |
| Monitoring alarm | You can view the disk monitoring performance in the details page of the disk. | All | |
| Tag management | CDS supports management of Cloud Disk Service through tags | All | |
| Recycle bin | CDS will be stored in the recycle bin for 7 days after being actively released | All | |
| Snapshot management | Manual disk snapshot | You can manually create snapshots for the purchased CDS cloud disk. | All |
| Automatic disk snapshot | You can create automatic snapshots for the CDS cloud disk. The system will automatically implement the snapshot operation for you as long as you define the disk and time cycle for creating a disk | All | |
| Automatic snapshot policy | You can create an automatic snapshot policy and associate the cloud disk. After association, the disk will initiate the automatic snapshot operation according to the policy set by the automatic snapshot. | All | |
| Instance snapshot | Support to create snapshots for all CDS in the cloud compute synchronously to realize the data backup of the whole machine | All | |
| Delete disk snapshot | Baidu AI Cloud currently provides you with 32 snapshot quotas for free. When the snapshot quota is full, you should delete the old snapshot. | All | |
| Create Cloud Disk Service from snapshot | When creating the CDS cloud disk, you can select to complete creation by snapshots. If having created several snapshots, you can directly create CDS disks from the snapshots. This operation is usually used for data recovery and backup. | All | |
| Rollback disk | When you should revert the version or roll back the data to a moment of the past, you can use the snapshot rollback disk function. | All | |
| Create a custom image. | You can create a custom image for the system disk. | System disk only | |
| Cross-region replication | You can replicate the snapshot in the current region to other regions to achieve data sharing among different regions. | Data disk only | |
| Snapshot chain | The snapshot chain is a collection of all the snapshot data generated by a CDS. Each CDs cloud disk has and only one snapshot chain. This snapshot chain will include all manual and automatic snapshot data created by you for the CDS cloud disk. Each snapshot chain has a uniquely identified snapshot chain ID, and the snapshot chain ID corresponds to the disk ID one-to-one. | All | |
| Tag management | You can replicate the snapshot in the current region to other regions to achieve data sharing among different regions. | Data disk only |