Forrester Defines Three Cloud Storage Use Cases. Multiple Drive Failures: RAID 6 vs. RAIN-EC « Permabits and Peta. In the middle of an article earlier this week on problems with MozyPro restore performance there was buried an interesting nugget: A wildfire in July caused Santa Barbara to be hit with several power outages, which led to the failure last week of one of three drives in a Teddy Bear server’s RAID group. Before a replacement drive could be installed, another drive in the group failed, and the foundation’s data was lost.
This is far more interesting story than a backup to the cloud service failing to perform, as if anyone should be surprised there given the recent string of cloud-storage growing pains, because it’s a publicly documented double drive failure. Why do I find that interesting? One of the big benefits of Permabit’s RAIN-EC technology is that it allows us to protect our customers against multiple, simultaneous drive failures. RAID 6 fixes this problem. Permabit’s Enterprise Archive has erasure code (similar to parity) information to recover from multiple drive failures. Like this: Inside System Storage -- by Tony Pearson. “In times of universal deceit, telling the truth will be a revolutionary act.” -- George Orwell Well, it has been over two years since I first covered IBM's acquisition of the XIV company. Amazingly, I still see a lot of misperceptions out in the blogosphere, especially those regarding double drive failures for the XIV storage system.
Despite various attempts to [explain XIV resiliency] and to [dispel the rumors], there are still competitors making stuff up, putting fear, uncertainty and doubt into the minds of prospective XIV clients. Clients love the IBM XIV storage system! In this economy, companies are not stupid. Before buying any enterprise-class disk system, they ask the tough questions, run evaluation tests, and all the other due diligence often referred to as "kicking the tires". Here is what some IBM clients have said about their XIV systems: In this blog post, I hope to set the record straight. Fact: IBM has sold THOUSANDS of XIV systems. Consider compression for primary storage optimization - Infostor.
By Jeff Byrne and Jeff Boles -- Capacity optimization has long been a tale of secondary storage, where large amounts of duplicate data – often the product of disk-to-disk backup – and less demanding I/O patterns rule the roost. The solutions that have risen to the challenges in this domain have been nothing short of impressive, and through innovative combinations of technologies – file single instancing, fixed- and variable-length sub-file deduplication, compression, and more – solutions in this space have demonstrated they can sometimes drive stored data down to 1/20th the size of its original footprint, or better. With such compelling promises of capacity optimization, the market for these solutions has grown beyond $2 billion. For the IT manager struggling to support nearly out-of-control data growth, these technologies surely look useful elsewhere (i.e., beyond secondary storage).
And the most obvious candidate is the real root of all of that data – primary storage.
EMC Launches Software To Speed Dedupe Backups, Aims To Revitaliz. Deduplication And Solid State Disk, A Perfect Match? - Network C. Where the Cloud Touches Down: Simplifying Data Center Infrastructure Management Thursday, July 25, 2013 10:00 AM PT/1:00 PM ET In most data centers, DCIM rests on a shaky foundation of manual record keeping and scattered documentation. OpManager replaces data center documentation with a single repository for data, QRCodes for asset tracking, accurate 3D mapping of asset locations, and a configuration management database (CMDB). In this webcast, sponsored by ManageEngine, you will see how a real-world datacenter mapping stored in racktables gets imported into OpManager, which then provides a 3D visualization of where assets actually are. You'll also see how the QR Code generator helps you make the link between real assets and the monitoring world, and how the layered CMDB provides a single point of view for all your configuration data.
Register Now! A Network Computing Webinar: SDN First Steps Thursday, August 8, 2013 11:00 AM PT / 2:00 PM ET Register Now! More Events » How Efficient Is Your Storage Environment?