Category Archives: Storage Technology

Storage technology, including SSD, disk, etc.

Beyond SSD: Flash is more than faster disk

Robin Harris of Storage Mojo in his recent article, “Are SSD-based arrays a bad idea?” and Matt Kixmoeller of Pure in his response, “The SSD is Key to Economic Flash Arrays,” presents interesting perspectives on whether or not SSDs are … Continue reading

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Flash revolution, part 3: Intelligent flash-based products

In Part 1 of our series of flash storage, we looked at disk-based products using bolt-on flash as a cache. These systems still access disk in their basic data paths and cannot take full advantage of flash performance. In Part … Continue reading

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Flash revolution, part 2: flash-based products

In Part 1, we looked at disk-based storage that uses flash as a cache. Because disk-based products rely on disks as a key part of their basic data path, they have difficulty achieving flash-level latency and will be left behind … Continue reading

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Flash revolution, part 1: Disk-based flash products

Flash is revolutionizing storage. The decades-long bottleneck in storage – disk spindles — is being obliterated! A single commodity SSD is 400 times faster than a hard disk.  In comparison, the speed of sound is “only” 250 times faster than … Continue reading

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How Flash Changes Enterprise Storage

Flash-based solid-state drives (SSD) have no moving parts, are more reliable, have faster read times, and offer consistent IO performance (latency) during high utilization, compared to traditional hard drives. Most of us have seen the most immediate impact of SSD … Continue reading

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Storage Virtualization: An Overview

The concept of virtualization has been around for some time. Virtualization is really just the abstraction of an actual entity or construct into logical representations of those entities or constructs. Most of the time, the term “virtualization” is tied to … Continue reading

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Choosing which applications to run in flash

As flash storage has become cheaper, it’s becoming increasingly practical to move application storage from hard-disk drive (HDD) to solid-state drive (SSD). Where are we today and how far have we come? In my previous blog post, “When is it … Continue reading

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When is it cheaper to use SSD vs. HDD?

For many applications, either solid-state drive (SSD) or hard-disk drive (HDD) is sufficient, and the choice comes down to cost. When determining which way to go, buyers want to know: How do we calculate this cost? And how does this … Continue reading

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Performance Reserves: Managing Performance like Capacity

“I would not give a fig for the simplicity this side of complexity, but I would give my life for the simplicity on the other side of complexity.” – Oliver Wendell Holmes The storage industry provides excellent visibility into capacity … Continue reading

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vSphere NFS Troubleshooting Basics

In my previous article covering “Connecting vSphere to NFS the Easy Way,” I talked about how connecting vSphere to a NFS network attached storage (NAS) is the easiest way to get shared storage up and running. Additionally, I pointed out … Continue reading

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Connecting vSphere to NFS the Easy Way

While most admins that come from a Windows server background don’t typically think of NFS for storage, when it comes to vSphere (ESXi), a NFS network attached storage (NAS) is by far the easiest shared storage option to use. I’ll … Continue reading

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