The Way Business Is Moving published by
Issue Date: September 2008

HP accelerates deduplication

1 September 2008
Paul Booth

One of the most rapidly growing areas of the IT industry is that of storage, where growth rates well in excess of 50% compound per annum are not uncommon.
This is a phenomenon fuelled by numerous factors including the use of e-mail as the primary source of business communications and the mandatory regulations/legislation associated with data protection and retrieval, part of the broader governance scenarios now essential and becoming prevalent within all businesses to a lesser or greater extent.
HP has been quick to recognise these trends and has responded accordingly with its new data deduplication initiatives that offer the ability to store more on a given amount of storage and replicate data using lower bandwidth links at a significantly reduced cost. This is one of the most important storage enhancement announcements in recent years and promises to shape future data protection and disaster recovery solutions.
Results provided by HP suggest that data deduplication technology can increase disk utilisation by up to 50% in delivering these scalable solutions that also reduce storage costs and protect business critical data. However, this deduplication is a cumulative process thus, it could take some time to yield impressive ratios and should not be viewed as an immediate panacea for immediately buying less storage.
In recognising the different needs of the enterprise customer to those of mid-size organisations, HP has now offered two complementary deduplication technologies to meet those two very different markets.
Accelerated deduplication
Object-level differencing has been provided for the high-end enterprise customer who requires:
* The fastest possible backup performance.

* The fastest restores.

* The most scalable solution possible in terms of performance and capacity.

* Multinode low-bandwidth replication.

* High deduplication ratios.

* A wide range of replication models.
Dynamic deduplication
Whereas dynamic deduplication (ie, hash-based chunking) has been provided for the mid size enterprise and remote office customers who require:
* A lower cost device through smaller RAM footprint and optimised disk usage.

* A fully integrated deduplication appliance with lights-out operation.

* A backup application and data type independence for maximum flexibility.
The above capability and functionality has been incorporated into HP StorageWorks Virtual Library Systems for the enterprise customer and into HP StorageWorks D2D Backup Systems for the SMB market.
Paul Booth follows worldwide and local IT industry trends. He is the founder and a shareholder of Global Research Partners.

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