Results tagged "RAID"
Total Search Results : 83
September 24, 2012 10:58 AMWe conclude our look at storage performance metrics with RAID. Learn how a theoretical RAID controller behaves while reading and writing to some common RAID configurations, and how that affects performance.
June 06, 2012 12:56 PMIs it time to consider combining a RAID controller with a virtual storage appliance for shared storage? Our blogger says maybe.
May 07, 2012 09:08 AMRather than a cosmetic makeover, new midrange array architectures are challenging the dominance of the old two-controller models, with scale-out systems, hybrid systems that move RAID to the drive shelves and shared cache systems.
March 07, 2012 09:00 AMIn the beginning, or at least the 20th century, modular scale-up storage systems dominated the market for midrange storage. More recently, the vendors of scale-out systems for NAS and iSCSI have touted the way their systems add controller horsepower and cache as they add capacity. Nexsan's new NST line of unified storage systems combines attributes of both architectures, hoping to leverage the best of both worlds.
February 29, 2012 01:00 PMAs SSD capacity continues to increase and prices drop, use of SSD for enterprise Tier 1 applications is going to become more and more common. At the same time, enterprises are adopting scale-out architectures. It's an exciting time to be involved in enterprise storage.
June 30, 2011 07:00 AMToday, Oracle announced that it is buying SAN array vendor Pillar Data. Pillar has, since its inception, been funded by Oracle CEO Larry Ellison’s Tako Ventures, so the whole transaction comes as a surprise to no one who follows the storage industry.
June 20, 2011 07:01 AMDuring my recent panel session with Howard Marks and Vanessa Alvarez at Interop, a question came up regarding the "big data" concept: How is it that storage capacity is so important to so many companies when performance has never been so critical? How can these two diverging requirements coexist in the same market, solutions, and devices?
February 01, 2011 09:30 AMWhile some other members of the storage industry's chattering class enjoy the process of haranguing array vendors for their seemingly outrageous disk drive markups, I've started recommending that users seeking cost-effective online storage look at BYOD (bring your own drive) storage systems. There are many choices available, from prosumer Data Robotics offerings and SOHO network-attached storage (NAS) boxes from NetGear and QNAP Systems to disk arrays with enterprise aspirations provided by Promise Technology and Infortrend. However, care must be taken when choosing the drives for a BYOD array.
January 10, 2011 11:00 AMAs we've previously discussed in "What Comes After RAID? Erasure Codes," forward error correction coding is a leading contender to replace parity RAID as disk hardware evolves past the point where parity provides effective protection. The question remains: Are Reed-Solomon and related coding techniques the inevitable replacement for parity in the RAID systems of the future?
December 16, 2010 10:43 PMAs I mentioned a few blog entries ago, the basic math behind parity based RAID (Redundant Array of Inexpensive Drives) solutions is starting to break down. While I think it's important for those of us that spend our days thinking about these things to raise the alarm, it's more important to think and write about the technologies that can take us past parity RAID. One major contender is Reed-Solomon erasure codes, which vendors are starting to use as an efficient alternative to parity or mirroring.
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