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Western Digital Redefines DRAM Caching

In a recent press release, Western Digital announced the release of an interesting if not curious solution for extending DRAM with fast storage.  The Ultrastar DC ME200 extends server DRAM using proprietary caching software in an attempt to fully exploit the capabilities of modern multi-core processors.  In an age where in-memory computing is increasing in… Read more »

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HDD Capacity Threshold Reaches 15TB

Western Digital has announced what is currently the largest capacity hard drive available on the market today.  The Ultrastar DC HC620 has 15TB of capacity in a helium-filled 3.5″ form-factor.  This is a 7% increase (or obviously 1TB) over the 14TB drive announced in October 2017. Incremental The new capacity drive looks more like an… Read more »

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Database Replication is Hard

I can only feel sympathy for the team at GitHub, after they suffered an outage recently, due to issues with database replication.  The problem was caused by a mere 43-second break in network connectivity.  We’ve all been there – keeping replicated data in sync is a thankless task and one that can be a nightmare… Read more »

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Pure Storage AIRI – CI for AI

Machine Learning and Artificial Intelligence (ML/AI) are two of the biggest buzzwords in the tech industry at the moment.  The technologies have wide application, much greater than the often-repeated stories about self-driving cars.  ML/AI solutions can be used in healthcare to improve diagnostics.  It has applications across the financial world, allowing companies to be more… Read more »

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Is Your Flash Storage Riding the DRAM Curve?

Interested in learning more about NVMe?  Download our free 21-page white paper report (no registration required) here   NVMe in the Data Centre The rate of growth in flash media is truly incredible.  In ten years, we’ve gone from highly expensive SLC devices to a range of NAND flash media for all requirements.  Flash manufacturers continue… Read more »

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Avoiding All-Flash Missing IOPS

We are living in a golden age of storage media, where new products come to market offering ever greater performance with lower latency than previous generations.  Today the hard drive and even early flash drives look positively archaic compared to modern NVMe drives built from 3D-XPoint, capable of delivering hundreds of thousands of IOPS and… Read more »

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Samsung 30TB SSD – The New Normal

Samsung has just announced 30.72TB in a single SAS SSD.  Let’s just think what that means for a moment.  That’s around 6,500 DVDs or 1,200 Blu-Ray disks, depending on how you do your maths.  It’s an amazing achievement.  In that form factor, 30TB in a 2.5″ drive is 6x the largest HDD available and around… Read more »

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The Practicality of In-Situ Processing

On last week’s Storage Unpacked podcast, we talked to Chris Mellor about IoT.  He raised the subject of “in-situ processing” or basically taking compute to storage.  On the face of it, this seems like a good idea.  In fact, last year I talked to Enrico Signoretti, Head of Product Strategy at OpenIO about the company’s… Read more »

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What are Storage Class Memory (SCM) and Persistent Memory (PM)?

Moore’s Law continues to drive innovation in the speed of computing.  In particular, processors and memory continue to push the boundaries of latency and performance.  Persistent storage is always playing catchup in a game where a single I/O to disk is aeons of time compared to a load/store from DRAM.  Flash storage improved latency and… Read more »