HDS 'delivers rapid LUN provision'
21 Nov 2008
Hitachi Dynamic Provisioning (HDP) can make a new server available in a short period of time by allowing systems to assign virtual logical unit number (LUN) capacity "as quickly as drag and drop", according to Hitachi Data Systems' (HDS) vice-president and chief technology officer Hu Yoshida.
As such, HDP knows the number of pages assigned to a LUN allocation and therefore reduces operational expense by only moving or copying the actual used pages, rather than the entire LUN.
Indeed, the LUN is wide-striped by using multiple 42 megabyte pages, which increases the throughput and decreases response time by enabling more disk spindles in the performance of input and output requests to virtual volumes, Mr Yoshida states.
Commenting on HDS' technology, he says: "The unused capacity for the 100 gigabyte LUN allocation is then available to be used to thinly provision other LUN allocation requests from the same HDP pool."
Mr Yoshida recently told ZDNet that the economic downturn could provide enterprises with the opportunity to optimise their storage and strategically plan their next market move.
For further information on HDS, click here.
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