"Like EMC, HP is offering different deduplication products to different backup markets, with a post-processing Virtual Library System (VLS), based on Sepaton's DeltaStor technology, and inline processing D2D systems for small and medium enterprises.
Deduplication strips out redundant data from files at the sub-file level. HP isclaiming it can provide a reduction in backup file size of up to 50:1; pretty ambitious. It assumes a standard business data mix and actual results will vary with data type, backup methodology and the length of time data is retained.
Inline deduplication is applied directly to incoming data. Post-processing deduplication is applied after incoming data from a backup run has finished arriving.
Dave Russell, a Gartner VP, said: “Deduplication technology is poised to transform the backup and recovery marketplace.”
HP's StorageWorks D2D 2500 and 4500 Backup Systems emulate up to 16 LTO tape autoloaders or libraries and can consolidate backup of up to 16 servers onto a single network-connected, disk-to-disk (D2D) device. These are not virtual tape library systems. They deduplicate data, using in-house HP Labs deduplication technology, inline, as backup data is ingested. HP calls this Dynamic Deduplication and notes that disk space is saved as no capacity needs to be set aside to hold incoming raw backup data."
[source: here]
Comments