HCSA integrates private on-premise storage with Alibaba Cloud Object Storage Service (OSS), provisioning cloud functions for your business needs.
Cloud-based scale-out
Cloud-based scale-out supports tiering mode, cache mode, and sync mode. It uses cloud storage to scale out local storage.
| Tiering Mode | Cache Mode | Sync Mode | |
|---|---|---|---|
| If HCSA fails | Some (cold) data is saved to the cloud | All data is saved to the cloud | All data is saved to the cloud |
| If the network fails | The service is temporarily unavailable | Only local hot data can be accessed | All data can be accessed in HCSA |
| Data access | Hot data: fast Cold data: slow |
Hot data: fast Cold data: slow |
All data: fast |
| Cloud data recovery | Not supported | Restoring to the latest backup in the cloud | Restoring to the latest backup in the cloud |
Cloud backup
Automatic cloud backup simplifies data management and data maintenance. You can create snapshots in the local storage of HCSA and upload the snapshot images of each point in time to the preconfigured cloud OSS bucket as a backup.
Cloud sync
File-level cloud sync features both high performance and strong data integrity, supporting both local storage of HCSA and two-way data mirroring at the folder level in the cloud.
