NAS Interface
In general, you must use the private API provided by the cloud provider to access the cloud provider. This product provides a familiar NAS interface (NFS/SMB). Users do not need to be aware of the API for accessing a cloud provider. This product performs conversions and transfers automatically, and therefore you can store data in a cloud provider without making major changes to the existing backup operations. With standard backup software, by just changing the output destination of the backup data to the shared folder provided by this product, the backup operations to the cloud provider can be implemented.
Deduplication and Compression
This product performs deduplication and compresses data, stores the data in cache, and then transfers the deduplicated/compressed data to the cloud provider. Therefore, it provides the following advantages:
Reduce the amount of data stored in cache
Reduce the time to transfer data to the cloud provider
Reduce the cost for storing data in the cloud provider
Deduplication and compression are performed on this product's virtual machine, and therefore there is no load on the backup server.
Note that although deduplication is performed without any conditions, you can select whether to enable or disable compression in the Settings screen.
Cache
This product uses the local disk for the virtual machine as "cache". The effects of using cache are as follows:
When transferring data to the cloud provider
"Writing Completed" is returned to the backup software when data is written to cache, allowing a high-speed response to the backup software.
When restoring data
Data is restored from cache instead of restoring from the cloud provider, allowing the restoration time to be reduced.
Both actual data and meta data are stored in cache. This product handles actual data and meta data as described below, according to the cache usage rate.
Cache Usage Rate | Handling of Actual Data | Handling of Meta Data |
|---|---|---|
Less than 80 % | Stored in cache. | Stored in cache. |
80 % or more | Stored in cache. After that, the data is deleted starting from the data with the oldest access date until the usage rate of the cache becomes less than 80 %. | Stored in cache. Not subject to deletion. |
The user can define the size of the cache when this product is installed.
Encryption
This product can encrypt data before storing it in a datastore. Doing so improves security for the data. Refer to "3.2 Registering a Datastore and Cache" for details about how to set data encryption.
Traffic Control
This product can adjust the amount of data transferred based on the upper limit set for the transfer rate. This can reduce the amount of network bandwidth used.
Note
This function monitors the amount of data transferred to and from the Cloud and adjusts data transfer amount by temporarily stopping the transfer when the upper limit has been exceeded. Therefore, the upper limit may be exceeded temporarily. In particular, depending on the amount of data sent from the Cloud, the data amount may greatly exceed the upper limit.
Multi-network Configuration
This product supports network configurations that connect to up to three subnets from a traffic partitioning and security point of view for management, NAS, and cloud networks.
ETERNUS SF Linkage
This product links with FUJITSU Storage ETERNUS SF AdvancedCopy Manager to easily back up data from the ETERNUS AF All-Flash Arrays or the ETERNUS DX Hybrid Storage Systems to the Cloud. Contact our customer support department for details.
