You can use Hybrid Backup Recovery (HBR) to back up files from Server Message Block (SMB) file systems of Apsara File Storage NAS. You can then restore the files if needed. This topic describes the preparations that you must make before backup.
Step 1: Authorize roles
Before using HBR to back up files from ECS instances, you must authorize the AliyunHBRDefaultRole and AliyunECSAccessingHBRRole roles to access your cloud resources. Follow these steps:
- Log on to the HBR console.
- In the left-side navigation pane, choose .
- In the authorization dialog boxes that appear one by one, authorize the two roles to access your cloud resources as prompted.
Step 2: Install and configure Cloud Assistant
A backup client for ECS requires interaction with Cloud Assistant. By default, Cloud Assistant is installed on ECS instances that are created after December 1, 2017. However, you must manually install Cloud Assistant on ECS instances that are created before December 1, 2017.