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 »

Is Your Flash Storage Riding the DRAM Curve?

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 to push the boundaries, with 30TB and 100TB drives already on the market.  With no end to this growth in sight, how… Read more »

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 »

Samsung Introduces 8TB NF1 NVMe SSDs

Samsung has recently announced an 8TB NF1 format NVMe SSD.  NF1 was originally called NGSFF (Next Generation Small Form Factor) and is intended as a replacement for the existing M.2 format drives.  With 15K and 10K drives disappearing from the market, is it time to accept we should move on from legacy HDD drive sizes?… Read more »

Avoiding the Storage Performance Bathtub Curve

We’re probably all familiar with the concept of the HDD or SSD reliability bathtub curve (figure 1).  This shows how over the lifetime of a drive, failures typically follow a pattern where failure rate increases over time to a steady state, then increases again as the device wears out.  But have you considered the idea… Read more »

The Britpop Battle of Rubrik and Cohesity

Were you a Blur or Oasis fan?  Perhaps you were on the side of Jarvis Cocker and preferred Pulp.  Whatever your choice, the Britpop wars of the 1990s were memorable for building hype around the UK music industry and the idea of Cool Britannia. In lots of ways, the evolution of the data protection industry… Read more »

NVMe over Fabrics – Caveat Emptor?

For the past 20 years, Fibre Channel has been the dominant enterprise data centre storage networking technology.  By this, I mean traditional Fibre Channel, not variants that work over IP or use Converged Ethernet (more on that in a moment).  It’s true that other protocols exist.  Smaller organisations have typically used iSCSI, because of the… Read more »

IDC 1Q2018 Data Shows a Rebound for Storage Hardware Sales

The latest IDC Storage Tracker numbers are out and in the spirit of recent analysis, I’ve put the numbers into my tracking spreadsheet.  The figures represent data for Q1, which now has 12 years’ worth of coverage.  With around 42% growth in the general storage hardware figures and 20% in external storage sales, the numbers… Read more »

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 »

The Race towards End-to-End NVMe in the Data Centre

The next greatest thing in storage hardware is the move to NVMe.  This is occurring in two ways – conversion of internal designs within shared storage platforms to use NVMe at the “back-end”, and front-end (or host connectivity) using NVMe over Fabrics in some form.  Vendors are starting to use the term “end-to-end” NVMe as… Read more »

Latest
  • TECHunplugged Returns to London!

    Following on from the success of the first US-based event in Austin earlier this year, TECHunplugged returns to the UK for a second conference on 12 May 2016.  The one-day event continues to be free for valid end users with seven influencers as well as seven sponsors presenting, including, Veeam, Load DynamiX, HGST and Cohesity.  A full agenda… Read more »

  • Nimble Joins the All-Flash “Me Too” Club

    This week Nimble Storage announced an all-flash array in a series of events around the globe that were based on presentations at the main event in San Francisco.  Many bloggers were flown in specially from around the world, to help get the all-flash message out.  Nimble has been a long-time provider of hybrid storage solutions… Read more »

  • Will NetApp Build A Hyper-Converged Appliance?

    The market for hyper-convergence seems to know no bounds as more and more vendors move into this segment of IT.  Last week EMC released their rebranding of the failed VSPEX BLUE platform as VxRAIL with EMC supplied hardware and VMware software. Looking across the market we have the two leaders (Nutanix and SimpliVity) offering hardware… Read more »

  • Object Storage: Standardising on the S3 API

    This post is the first of a series of independently written technical briefings on the AWS S3 API and how it has become the de-facto standard for object stores.  The series is commissioned by Cloudian Inc.  For more information on Cloudian and the company’s HyperStore object storage technology, please visit their site at: http://www.cloudian.com/   The… Read more »

  • More Thoughts on Storage Performance – Measuring with Load DynamiX

    In a previous post, I wrote about how improvements in storage performance have been achieved through changes to software.  Vendors like DataCore and Nutanix have implemented significant improvements that are in some cases quite remarkable.  As the storage market diverges into dozen’s of vendor platforms, how can end users validate the claims vendors are making?  Verifying vendor… Read more »

  • Fixing Storage Performance with Software

    This week I’ve had two interesting briefings that talked about significant storage performance improvements which have been achieved through storage updates.  The first was from DataCore, a long time storage virtualisation company that has been in the industry for 20 years.  The second was from Nutanix, which released a series of updates as part of AOS 4.6… Read more »

  • VSAN 6.2 – Is it RAID or Erasure Coding?

    Update: The day after this post was released, VMware issued a clarification post on the Virtual Blocks website.  The post pretty much summarises what is written here, with a little more detail, although it doesn’t look like erasure coding in VSAN will be extended past the 3+1 and  4+2 schemes.  You can find the post… Read more »

  • Bi-Modal IT – A Double-Edged Sword?

    Today’s business world necessitates that IT organisations deliver to an agenda of agility and flexibility.  The business demands that the IT function adopts and embraces new technologies, with a speed that makes the process challenging for all but the most effective CIOs.  One approach to meeting these demanding business requirements is that of Bimodal IT…. Read more »

  • Hyper-convergence and Private Cloud

    Hyper-convergence has been one of the biggest IT trends of the last 24 months, with start-ups and existing technology vendors offering a suite of hardware and software solutions.  Many have conflated hyper-convergence and private cloud to mean one way of deploying and managing IT infrastructure and applications.  Although there are many similarities between the two… Read more »