Software Defined Storage Rev. 2.0 - TN
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Virtualising servers and storage systems has become<br />
a vital part of an organisation’s IT strategy, no matter<br />
how small the company is. The key objectives behind<br />
virtualisation include optimising hardware resources<br />
by consolidating them, increasing flexibility and<br />
reducing the costs for energy, cooling or space requirement.<br />
<strong>Storage</strong> virtualisation, just as server virtualisation,<br />
leverages the existing physical resources,<br />
centralises and simplifies management and can increase<br />
availability by deploying live migration. In this<br />
way, your administrators can transfer virtualised<br />
environments from a physical server to another without<br />
any system or operating downtimes.<br />
<strong>Storage</strong> virtualisation leverages existing capacities<br />
by delivering a fast and flexible supply of the required<br />
storage capacities. For a long time, individual applications<br />
were allocated with fixed storage resources in a<br />
storage pool.<br />
5%<br />
Although the average IT budget grows by a<br />
maximum of 5% each year, the IT landscape<br />
is faced with increasingly more tasks that it<br />
has to manage within the organisation.<br />
Virtual storage machines<br />
This created a typical over-provisioning scenario as<br />
many of the applications did not utilise the storage<br />
resources allocated to them. This is now over – thanks<br />
to thin-provisioning which provides a method for optimising<br />
utilisation of available storage capacities.<br />
This results in an efficient allocation of data to improve<br />
fast access and performance.<br />
Virtual storage<br />
identity<br />
Host I/O and copy<br />
management<br />
Virtual<br />
hardware<br />
Processors, cache,<br />
front-end ports,<br />
storage media<br />
Virtual storage<br />
identity<br />
Host I/O and copy<br />
management<br />
Virtual<br />
Hardware<br />
Processors, cache,<br />
front-end ports,<br />
storage media<br />
Virtual storage software<br />
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