Article Number: 000146075
The DR4000 is a high-performance, disk-based backup and recovery target appliance that is simple to deploy and manage. The appliance is available in 2.7TB, 5.4TB, and 9TB post-RAID storage capacities (with future support for an 18TB post-RAID model) and is ideal for deployment in small enterprise and remote office environments.
The DR4000 boasts an impressive feature set, which includes:
DR4000 Building Blocks
The DR4000 firmware implements an inline, content-aware deduplication and compression engine. The software architecture consists of the following building blocks:
Front end protocol layer: This layer implements protocol support for incoming I/O. The supported protocols are NFS and CIFS. (OST and NDMP will be supported in future releases.)
Dedupe/compression engine: This is the key component of the architecture. The dedupe engine implements advanced chunking and deduplication algorithms to achieve space savings.
Ingest buffers: The DR4000 implements inline deduplication and compression. Ingest buffers, which reside in high-speed NVRAM, receive incoming data flows, and the dedupe engine works on the data in the ingest buffers.
Disk storage structures: Several key data structures are stored on disk, which enable efficient dedupe and compression operations. These data structures include:
21 Feb 2021
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