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FCW : July 15, 2013
July 15, 2013 FCW.COM 21 Agency infrastructure is in for a serious overhaul. New technologies, architectures and frameworks have begun to assert themselves, leav- ing no core IT component untouched. Storage, once a fairly stable sector from an innovation perspective, will see an explosion of ash-based devices and the arrival of technologies that will help agencies put data in the best possible storage tier. Software-de ned networks could shake up the networking status quo as the technology extends virtual- ization beyond servers and storage. More rigorous and methodical approaches will become more commonplace in the eld of mobile app development. And a new security framework for defending critical infrastructure will begin to take shape this year. Although the full impact of those developments might not be felt for a few years, the leading edge is already moving into view. Read on for an overview of the key developments. Storage tiering IT managers face more storage options than ever, and traditional disk storage now operates alongside a variety of ash-based devices. With the wealth of storage choices, the issue now becomes how to direct data to the optimal device from a cost and performance perspective. For example, low-cost, high-density disks such as Serial Advanced Technology Attachment (Serial ATA) provide lower and seek to use SSDs more ef cient- ly. Automated tiering can help govern- ment agencies incorporate ash into storage arrays, where the new tech- nology can co-exist with more familiar disk drives. Jim Damoulakis, chief technology of cer at GlassHouse Technologies, an IT infrastructure consulting rm with a specialization in storage, said auto- mated tiering helps customers intro- duce solid-state storage in a way that is less obtrusive. "It gives you the ability to leverage a relatively small amount of SSD, which is still signi cantly more costly than spinning disk," he said. "You can inject a little [solid state] and get signi cant performance gains from that." Damoulakis said tiering can be deployed to establish three layers of storage: a fast SSD layer, a medium layer of Serial Attached SCSI, and a slower, near-line layer of Serial ATA drives. The automated tiering technology samples input/output activity to deter- mine where the data should reside, and tiering products let organizations control when the sampling occurs. For example, should it take place continu- ally or only during peak work hours? Customers can also determine when Next year's models Some core building blocks of federal IT are primed for radical improvement BY JOHN MOORE SSD LAYER APPLICATION FILE SYSTEM STORAGE CONTROLLER SERIAL ATTACHED SCSI SERIAL ATA DRIVES Storage tiering Automated tiering technology samples input/output activity to determine where the data should reside, and tiering products let organizations control when the sampling occurs. performance than other media but offer an ef cient platform for storing data that is retrieved less frequently. More expensive ash storage --- as deployed in solid-state drive (SSD) technology --- offers higher perfor- mance for mission-critical applications with high input/output demands, but it is too expensive for archival purposes. Against this backdrop, automated tiering technology has begun to emerge as a way to route data to the appropri- ate storage level. Some large IT shops have already adopted tiering, and its use will only increase into 2014 as more customers adopt ash storage
June 30, 2013
July 30, 2013