What storage technologies are hot today?
In the current economic climate, storage managers are particularly interested in expanding storage capacity as data continues to grow unabated, enhancing disaster recovery plans, and improving storage performance to service business users better, according to IDC's European storage survey (IDC's 2009 Annual European Storage Survey: Understanding User Needs in a Changing Economic Climate).
However, these initiatives typically increase the operational cost of the storage infrastructure. Adding storage capacity to cope with data growth is a very short-term strategy, which will lead to complexity and management nightmares, and ultimately, higher operational cost. Achieving a viable disaster recovery plan can also turn into a costly undertaking, if not well thought through. Finally, improving storage performance is often achieved through methods that result in low utilization rates. This, in turn, drives the storage capacity expansion and operational costs higher.
With the above in mind, it should not be surprising that the currently hot storage technologies enable users to achieve what they aim for, but at the same time enable them to reduce operational cost and increase storage efficiency. The timing couldn't be better since it has become clear that storage is reaching a new phase of maturity. This new phase is one where storage resources need to be used as efficiently as possible, and where old strategies of just increasing capacity without addressing operational cost or underutilization of storage are no longer viable. This is even true for those that have put such efficiencies aside to achieve increased performance. This is a trend that will continue beyond 2009 as it ushers in a new phase where returning to previous levels of wasted storage capacity is not an option.
There are a multitude of technologies out there which help tame data growth and support solving the storage efficiency challenge. Data deduplication, for example, has been the hot topic of the summer, as it helps to buck with the data growth trend. But this is hardly the only new and exciting storage technology addressing the industries' new problems. Other technologies like thin provisioning and storage virtualization provide greater storage utilization and cost-efficient DR (respectively) are also in high demand. Storage management software is seeing increased interest because it enables users to manage across storage silos, whereas archiving is seen as a means to reduce primary data by off-loading to an archive.
What storage technologies are shaping storage strategies of tomorrow?
Cloud storage is shaping up as the future architecture for storage deployment, and storage-as-a-service is the first step in this direction. Cloud storage is essentially a way of architecting storage infrastructure by using standard building blocks, in which management is automated to a large degree and efficiency is paramount.
File-based technologies like file virtualization will see increased demand as well, as most of the data growth comes from the unstructured side. The before-mentioned survey has shown for several years in a row that e-mail and file-related applications are driving data and storage growth.
SSD is a technology much talked about, but still with very limited adoption, as it is currently more than 10 times more expensive than traditional disk storage. As storage administrators are evaluating this technology, they need to keep in mind that it is just a point solution, which actually emphasizes the need for intelligent storage tiering. With another storage tier available (tier zero) at a high cost, storage administrators will not be able to resort to the good old "keep everything on primary storage" approach. By having a robust software layer in place to manage storage tiering, ILM can finally be implemented and its benefits (lower cost and better data management) can be achieved. SSD will most likely drive in mixed environments, where a limited number of SSDs are in the same enclosure as a large number of SATA drives bundled with automated storage tiering software.