Network, your next big storage problem!

data

Good post by Enrico Signoretti (thank you)

A few days ago I had an interesting chat with Andy Warfield at Coho Data and the topic of Network/Storage relationship came up several times. (Quick disclaimer: I’m currently doing some work for Coho)

In a couple of my latest articles (here and here) I talked about why many large IT organizations prefer PODs to other topologies for their datacenters but I totally forgot to talk about networking (I also have to admit that networking is not my field at all). So, this article could be the right follow-up for those posts.

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VMware Metro Storage Cluster Overview

Good post by Derek Hennessy (thank you)

VMware Metro Storage Cluster

VMware Metro Storage Cluster (vMSC) allows vCenter to stretch across two data centers in geographically dispersed locations. In normal circumstances, in vSphere 5.5 and below at least, vCenter would be deployed in Link-Mode so two vCenters can be managed as one. However, with vMSC it’s possible to have one vCenter manage all resources across two sites and leverage the underlying stretch storage and networking infrastructures. I’ve done previous blogs on NetApp MetroCluster to describe how a stretched storage cluster is spread across two disparate data centers. I’d also recommend reading a previous post done on vMSC by Paul Meehan over on www.virtualizationsoftware.com. The idea behind this post is to provide the VMware view for the MetroCluster posts and to give a better idea on how MetroCluster storage links into virtualization environments.

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Hardware First – Designing All-Flash Arrays From a Hardware First Perspective

Good post by George Crump (thank you)

Data centers have to meet the increasing performance demands of scale out databases, big data analytics, and dense virtual environments. These data centers need to meet these demands without requiring more data center floor space or consuming more power. All-flash arrays seem to be the “default” answer to today’s storage performance problems. But all of these systems are not created equal. How the all-flash hardware and software are designed, and how these two components work together, will impact short-term results and long-term potential of the flash investment.

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Dispelling Myths about IOPs

Good post by Hu Yoshida (thank you)

Since the SPC numbers for the G1000 came in at 2 million IOPs and blew away every other all flash array vendor, there have been a number of posts in the blog sphere discussing the relevance of IOPs as a measure of performance. Lets look at some of the myths about IOPs.

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SanDisk Unveils InfiniFlash All-Flash Array For Big Data

Post by Adam Armstrong (thank you)

Today SanDisk Corp, unveiled its new storage platform, the SanDisk InfiniFlash. The InfiniFlash creates an entirely new category in the IT industry as it geared toward and dubbed “Big Data Flash.” InfiniFlash comes in three configurations that are all aimed at delivering high capacity, high performance, and reliability for big data and hyperscale workloads.

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Traditional enterprise workloads on an all-flash array?

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Post by Martin Glassborow (thank you) over at El Reg

Are all-flash arrays ready for legacy enterprise workloads? The latest little spat between EMC and HP bloggers asked that question.

But it’s not really an interesting question. A more interesting question would be: “Why would I put traditional enterprise workloads on an AFA?”

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Interesting Question?

Good post by Martin Glassborow (thank you)

Are AFAs ready for legacy Enterprise Workloads? The latest little spat between EMC and HP bloggers asked that question.

But it’s not really an interesting question; a more interesting question is why would I put traditional Enterprise workloads on an AFA? Why even bother?

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2014: Validation of Hyper Convergence – 2015 Hyper Converged Goes Mainstream

Good post by Gabriel Chapman (thank you)

Looking back on 2014 I saw it as  the year that Hyper Convergence  has come into its own as a legitimate data center technology. It’s rare that I don’t run into a customer in my day to day discussions that is not evaluating one of the current Hyper Converged vendors, or looking to adopt or develop a strategy for how Hyper Converged can become part of their IT infrastructure to some extent.

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Understanding RAID Performance at Various Levels

Excellent post by Scott Alan Miller (thank you)

Choosing a RAID level is an exercise in balancing many factors including cost, reliability, capacity, and of course, performance. RAID performance can be difficult to understand, especially as different RAID levels use different techniques and behave rather differently from each other in some cases. In this article, I want to explore the common RAID levels of RAID 0, 5, 6, and 10 to see how performance differs between them.

 

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