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Why Deterministic Storage Performance is Important

In the days of spinning media, I/O performance was anything but consistent.  When mechanical head movement is involved, response time can vary enormously.  Actually, the variation of I/O isn’t just to do with mechanics as we will discuss in a moment.  However, inconsistent I/O response time is a problem for applications and as tolerances reduce,… 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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Making The Case for SATA SSDs

Update:  Looks like Samsung released new versions of their 800 Series, also focused on increased endurance (link) although products are a mix of MLC and TLC. Micron has recently announced a refresh to their 5100 SATA SSD series with the release of the 5200 series using 64-layer 3D-NAND technology.  As discussed on our most recent… Read more »

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It’s Time for Hard Drives to Join Tape In The Archive Tier

This week we’ve seen the announcement of 14TB 3.5” hard drives from one vendor and 12TB from another. It’s hard to imagine the concept of 14TB in a single hard drive when ten years ago we were looking at only 1TB devices. However, these devices have a problem. The throughput and latency has remained relatively… Read more »

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SanDisk 400GB MicroSD Card – QLC in Action?

Yesterday SanDisk/Western Digital announced the availability of a 400GB microSD card, doubling the capacity of their previous offering.  In a press release WD said: Western Digital achieved this capacity breakthrough by leveraging its proprietary memory technology and design and production processes that allow for more bits per die. Is this the first, or at least… Read more »

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M.2 SSD Drive Format is Under-rated by Enterprise Storage

Last week I was reading this article on Ars Technica discussing the latest Samsung M.2 format drives to hit the market.  In something similar to a DIMM format, you get up to 2TB of capacity and read/write speeds of 3.5GB/s and 2.1GB/s respectively.  M.2 comes in a range of sizes and was originally developed for… Read more »

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Seagate Ups The Ante with 60TB SSD

Hot on the heels of Samsung’s 15TB SSD, Seagate has announced their own hyper-capacity drive, an (as yet) unnamed 60TB SAS solid state disk.  The new product was announced at the recent Flash Memory Summit in Santa Clara, California, USA.  So is 60TB setting a new standard?  Is it a practical device for every day… Read more »

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Conflating Reliability and Endurance in SSDs

Last week I sat through a presentation by Samsung on the evolution of their DRAM and flash business. One question raised by a journalist in the room related to the reliability of flash drives. The presenter proceeded to talk about the industry and how endurance means flash has a finite lifetime, one which now varies… Read more »