Overview

Solution Introduction

To prevent data loss of a system deployed on a BMS caused by external virus intrusions, misoperation, or software bugs, you can use the Cloud Backup and Recovery (CBR) service to back up your BMS periodically and automatically (the minimum backup period is one hour). You can use a backup to quickly restore your BMS in any of the cases mentioned above.

CBR backs up the configurations and all EVS disks of your BMS to highly reliable Object Storage Service (OBS) to ensure the security of your data.

Figure 1 Backup and restoration

Scenarios

Enterprise core databases and finance services require high data security. In such cases, you are advised to back up BMSs to improve data reliability.

Advantages

• Easy: You can create a policy easily for online backup.
• Efficient: Incremental backups shorten the time required for backup by 95%. With instant restoration, the RPO is as low as 1 hour and RTO is only several minutes.
• Reliable: A consistent backup of multiple disks ensures data security and reliability.

Constraints

• A BMS backup cannot be used to create an image.
• When a BMS is restored using a backup, it will be stopped automatically, which will interrupt user services. After it is stopped, it will be locked for a period of time during which users cannot perform any operations on it.

Prerequisites

1. Create a key pair.

   For system security, you are advised to use a key pair to authenticate users who attempt to log in to a BMS. You can use an existing key pair or create a new one for remote login authentication.

   For details, see Using an SSH Key Pair. If you already have a key pair, skip this step.

2. Create a VPC.

   BMS uses networks provided by a Virtual Private Cloud (VPC), including subnets and security groups.

   For details, see Creating a VPC with a Subnet.

Procedure

To back up a BMS, do as follows:

1. Create a backup policy. Set the backup time, backup period, and retention rules to back up a BMS automatically.
2. Buy a server backup vault. Buy a vault to store backups.
3. Associate your server with a vault. Associate your BMS with the vault to back up and replicate data.
4. Create a server backup. Back up your BMS manually.
5. Check backups and restore data. Check the backups created automatically or manually on the management console. Restore your BMS to a specific point in time as you need.