Results tagged "RAID"
Total Search Results : 83
Of IOPS and RAID: How Raid Affects Application Performance
September 24, 2012 10:58 AM
We 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.Combining SSD Cache and Virtual Storage Appliances
June 06, 2012 12:56 PM
Is it time to consider combining a RAID controller with a virtual storage appliance for shared storage? Our blogger says maybe.Rethinking The Midrange Array
May 07, 2012 09:08 AM
Rather 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.Scale-up, Scale-Out Nexsan Blurs the Line
March 07, 2012 09:00 AM
In 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.SSD, Scale-Out Architecture To Grow
February 29, 2012 01:00 PM
As 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.In Surprise To No One, Oracle buys Pillar
June 30, 2011 07:00 AM
Today, 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.Performance Vs. Capacity: A Fork In The Road
June 20, 2011 07:01 AM
During 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?Yes, Virginia, RAID Drives Are Different
February 01, 2011 09:30 AM
While 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.More on Advanced Erasure Codes
January 10, 2011 11:00 AM
As 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?What Comes After RAID? Erasure Codes
December 16, 2010 10:43 PM
As 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.Best of the Web
VXLAN termination on physical devices
VXLAN is an Experimental IETF draft of protocols to enable the creation of a large overlay, multi-tenant network.
ONF Deadly Serious About OpenFlow-Based SDNs
: OpenFlow is poised to reach over-hyped status, yet there are practical, useful reasons for keeping an eye on Openflow. The biggest cloud players are involved and driving the feature creation.
Practical Introduction to Applied OpenFlow
Get a primer on the Openflow protocol and what it can do for networking.
On Resilience of Spit-Architecture Networks
This research papers investigates the practical issues in split-architecture networks and the placement of the controllers, such as Openflow controllers, in the network.
