Supported Dell EMC Data Domain Features
The DD Boost technology offers a set of features for advanced data processing. Veeam Backup & Replication supports the following features:
You cannot configure Managed File Replication using Veeam Backup & Replication. However, you can import and map backups replicated between Data Domain storage systems to backup, backup copy or replication jobs, or perform restore operations from such backups.
Distributed Segment Processing lets Dell EMC Data Domain "distribute" the deduplication process and perform a part of data deduplication operations on the gateway server side.
Without Distributed Segment Processing, Dell EMC Data Domain performs deduplication on the Dell EMC Data Domain storage system. The gateway server sends unfiltered data blocks to Dell EMC Data Domain over the network. Data segmentation, filtering and compression operations are performed on the target side, before data is written to disk.
With Distributed Segment Processing, operations on data segmentation, filtering and compression are performed on the gateway server side. The gateway server sends only unique data blocks to Dell EMC Data Domain. As a result, the load on the network reduces and the network throughput improves.
Advanced Load Balancing and Link Failover allow you to balance data transfer load and route VM data traffic to a working link in case of network outage problems.
Without Advanced Load Balancing, every gateway server connects to Data Domain on a dedicated Ethernet link. Such configuration does not provide an ability to balance the data transfer load across the links. If a network error occurs during the data transfer process, the backup job fails and needs to be restarted.
Advanced Load Balancing allows you to aggregate several Ethernet links into one interface group. As a result, Dell EMC Data Domain automatically balances the traffic load coming from several gateway servers united in one group. If some link in the group goes down, Dell EMC Data Domain automatically performs link failover, and the gateway traffic is routed to a working link.
Veeam Backup & Replication supports Virtual Synthetic Fulls by Dell EMC Data Domain. Virtual Synthetic Fulls let you synthesize a full backup on the target backup storage without physically copying data from source datastores. To construct a full backup file, Dell EMC Data Domain uses pointers to existing data segments on the target backup storage. Virtual Synthetic Fulls reduce the workload on the network and backup infrastructure components and increase the backup job performance.
Veeam Backup & Replication supports in-flight encryption introduced in Dell EMC Data Domain Boost 3.0. If necessary, you can enable data encryption at the backup repository level. Veeam Backup & Replication will leverage the Dell EMC Data Domain technology to encrypt data transported between the DD Boost library and Data Domain system.
Veeam Backup & Replication supports per storage unit streams on Dell EMC Data Domain. The maximum number of parallel tasks that can be targeted at the backup repository (the Limit maximum concurrent tasks to N setting) is applied to the storage unit, not the whole Dell EMC Data Domain system.
Veeam Backup & Replication supports Dell EMC Data Domain storage systems working over the following protocols:
- TCP/IP protocol: Veeam Backup & Replication communicates with the Dell EMC Data Domain server by sending commands over the network.
- Fibre Channel protocol: Veeam Backup & Replication communicates with the Dell EMC Data Domain Fibre Channel server by sending SCSI commands over Fibre Channel.