Disk Backup

What Is EVS Disk Backup?

Cloud Disk Backup provided by Cloud Backup and Recovery (CBR) allows you to create backups for your EVS disks while servers are running. If data loss or damage occurred due to virus invasions, accidental deletions, or software/hardware faults, you can use backups to restore data, guaranteeing your data integrity and security.

CBR Architecture

CBR involves backups, vaults, and policies.

Backup

A backup is a copy of a particular chunk of data and is usually stored elsewhere so that it may be used to restore the original data in the event of data loss.

There are the following types of backups:

• Cloud disk backup: provides snapshot-based backups for EVS disks.
• Cloud server backup: uses the consistency snapshot technology to protect data for ECSs and BMSs. Backups of non-database servers are non-database server backups, and those of database servers are application-consistent backups.
• SFS Turbo backup: backs up data of SFS Turbo file systems.
• Hybrid cloud backup: protects data of VMware VMs by storing their backups to the cloud. You can manage the backups on the CBR console.
• File backup: backs up data of a single or multiple files, instead of the entire cloud servers or on-premises hosts.
• Desktop backup: backs up data of Workspace desktops.

Vault

CBR stores backups in vaults. Before creating a backup, you need to create at least one vault and associate the resources you want to back up with the vaults. Then the resources can be backed up to the associated vaults.

Different types of resources must be backed up to different types of vaults. For example, cloud servers must be backed up to server backup vaults, not disk backup vaults or any other types of vaults.

Policy

There are backup policies and replication policies.

• A backup policy defines when you want to take a backup and for how long you would retain each backup.
• A replication policy defines when you want to replicate from backup vaults and for how long you would retain each replica. Backup replicas are stored in replication vaults.

Organizational policies

You can manage backup and replication policies for a given organization. The organization administrator or delegated CBR administrator can centrally create and configure organizational backup policies and replication policies for member accounts in the organization.

• Organizational backup policies: An enterprise can use an organization's management account to configure organizational backup policies for all the member accounts in the organization. All member accounts in the organization can use the created organizational backup policies.
• Organizational replication policies: An enterprise can use an organization's management account to configure organizational replication policies for all the member accounts in the organization. All member accounts in the organization can use the created organizational replication policies.

Figure 1 CBR architecture

Who Can Use the Backup Function?

Only users with the CBR FullAccess permissions can use the cloud disk backup function. If the user does not have the permissions, contact the account administrator to grant the permissions first.

Application Scenarios