Several products of duplicate data deletion technology

Not long ago, there were only a few initial companies in the field of data deduplication, such as data domain. The technology has been growing over the last five years. Now, almost all manufacturers are using data deduplication technology.

If you want to use this technology, the following products are worth noting.

1. Quantum DXi8500

Quantum's DXi series built-in data deduplication disk systems contain several products. For example, DXi8500 is for enterprise-wide backup, disaster recovery, and data protection. It provides up to 6.4tb/hours of backup performance and up to 200TB of usable capacity.

Quantum Enterprise Disk System Product Manager Mike Sparkes says: "Quantum uses variable-length block technology to apply the most efficient data reduction techniques." ”

2. HP d2d4324

HP d2d4324 Backup system uses the company's storceonce de-duplication technology. It provides up to 72TB of usable capacity. As competition intensifies in the area of data deduplication, HP has improved its own de-duplication algorithm to save data in memory and on disk for duplicate data deletion files, and to better arrange the disks.

"Sometimes we don't even do duplicate data deletions because some file types are inefficient and degrade performance," says Lee Johns, director of HP's StorageWorks Unified Storage (Unified storage) Product marketing. In these relatively rare cases, we just compress them. ”

3. EMC Avamar Data Store

There is a lot of controversy between target-side data deduplication and source-side deduplication in the data de-duplication community. EMC also offers solutions for two of technologies. On the source side, EMC has Avamar.avamar data deduplication before data is transmitted over the network. This is better for users who need VMware, remote offices and NAS (network attached storage) and limited bandwidth resources.

"If you want to maximize the efficiency of de-duplication or want data de-duplication before data is transmitted over the network, source-side deduplication is effective," said Mark Sorensen, senior vice president of the EMC Storage software Group Enterprise Storage Division. ”

Users can deploy Avamar in several ways, but the quickest and easiest way to do this is with the EMC Avamar data store. This data store consolidates EMC hardware and Avamar backup/recovery software under a single package. This allows users to not consider how to deploy Avamar software under existing hardware conditions. The latest version of Avamar includes Microsoft share point Server 2007 and IBM Lotus Domino Source-side data deduplication.

4. EMC Data Domain Boost

Data de-duplication for source-side deduplication is generally more efficient, but the downside is that it consumes CPU resources. Therefore, if you are backing up a SAN (storage area Network) for source-side data-de-duplication, performance may fall very quickly. Using target-side data de-duplication technology can ease the burden on the SAN. Target-side data duplication is also frequently used in databases.

In view of the customer's concerns, EMC Data Domain offers a wide range of products, including all-scope equipment. Boost Software is probably one of the most visible. In a way, boost software has scrambled the contention between source and target technology. Although data domain is still a target-level product, boost has shifted most of the workload to the backup media server. EMC's idea is not to have all the data on the Internet during the backup process and let the duplicate data-removal device sort out which data is already recorded and which data is new, but rather let the media server make a decision beforehand and transfer only the necessary material to the network.

Boost reduces the load on the backup server and frees up more bandwidth for the data domain device. This, according to EMC, saves 80-99% backup LAN (LAN) bandwidth and can increase the speed of data domain devices by 50%.

(Responsible editor: The good of the Legacy)