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Disk Backup and Restoration
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Service Provisioning
Disk Backup and Restoration
Online, uninterrupted backups can be performed on EVS disks, and backup files can be used to seamlessly restore EVS disks.
Advantages
Ease-of-Use
Policies can be easily defined for backing up data online.
Efficiency
Incremental backup reduces backup time and incremental restoration cuts down RTO to minutes.
Durability
VBS backs up data to OBS, ensuring 99.999999999% data durability.
Service Provisioning
The system disk image and data disk backup of an ECS can be used to quickly create identical ECSs, facilitating rapid batch-deployment of services across availability zones (AZs).
Advantages
Ease-of-Use
Backup can be configured in three steps and an EVS disk can be created from a backup in two steps.
Cost-Effectiveness
Storage resources for backups are charged based on usage, and can be reduced when required.
Reliability
EVS disk backups can be used to create EVS disks across AZs, enhancing the reliability of data.
Functions
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Easy and Efficient Backup
Policies can be configured for automatic backup of EVS disks. The backups are performed without interrupting ongoing data operations on EVS disks.
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Flexible Restoration
Backups can be used to perform rollbacks, create disks, and incrementally restore data.
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Data Security
Backups can be encrypted and stored in multiple data centers.
Online backup
VBS backs up EVS disks of a running Elastic Cloud Server (ECS) and does not require the ECS's EVS disks to be detached.
Permanent incremental backup
After an initial full backup, data continues to be backed up incrementally, saving backup time and space.
Automatic backup
A backup policy can be easily defined and associated with one or more EVS disks to implement automatic backup.
EVS disk rollback & creation
An EVS disk backup can be used to restore the source EVS disk to its original state. The backup can also be used to create a new EVS disk containing the same data that the source EVS disk had when it was backed up.
Incremental restoration
When the latest backup is used to restore a source EVS disk, only the data blocks that have changed since the last backup are restored, cutting down the RTO to minutes.
Backup encryption
Backups of encrypted EVS disks are automatically encrypted to ensure data security.
Reliability
Copies of each backup are stored in multiple data centers, making the backups immune to data center failures.
Experience-level
For individuals and small enterprises
Experience-level
For individuals and small enterprises
Backup scenario
- ECSs 1
- Data amount 40 GB
- Backup frequency Once a day
- Backups retained 7
Recommended configuration
- 40 GB package
Entry-level
For small enterprises
Entry-level
For small enterprises
Backup scenario
- ECSs 2 or 3
- Data amount 250 GB
- Backup frequency Once a day
- Backups retained 30
Recommended configuration
- 500 GB package
Generic-level
For medium enterprises
Generic-level
For medium enterprises
Backup scenario
- ECSs 10
- Data amount 1 TB
- Backup frequency Once every several hours or once a day
- Backups retained 30
Recommended configuration
- 2 TB package
