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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 »

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What is the Technology Behind Samsung Z-NAND?

This week Samsung announced a new solid-state drive based on what the company is calling Z-NAND.  The SZ985 Z-SSD (again a new acronym) offers high performance and low latency, compared to a traditional SSD product.  So what is Z-NAND and is it really any different to traditional NAND in use today? Z-NAND First of all,… Read more »

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What Next for XtremIO?

The Dell EMC XtremIO team recently presented at Storage Field Day 14.  It was an opportunity to catch up on a technology I’ve been less than positive about over the years.  So has XtremIO X2 moved on?  What does the future look like for the all-flash platform? XtremIO Background XtremIO Inc was an Israeli start-up,… Read more »

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Kaminario Goes Software-Defined

Kaminario recently announced that the company is moving to a software-based business model.  Rather than build and support storage arrays, Kaminario will partner with Tech Data for logistics and essentially focus on the software part of their offering.  Is this an admission of defeat or a sign of the times? A Hardware History Kaminario has… Read more »

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Seagate Pre-announces Multi-Actuator Drives

When your technology is based on mechanical motion, it’s inevitable that at some point the laws of physics will get in the way.  This has been a problem for hard disk drives for some time.  Spin speeds never exceeded 15K RPM except in some test drives.  As a result, throughput has been limited by this… Read more »

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Four Platforms When One Will Do?

One of the more interesting discussions from SFD14 was the review of the various mid-range platforms that Dell EMC now offers.  The merger of the two organisations brought Unity and VNX(e) from EMC, while SC (Compellent) and EqualLogic came from the Dell side.  Each platform has very different characteristics.  Unity and VNX(e) have heritage from… Read more »