Designing Backup to replace Primary Storage

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Good post by George Crump (thank you)

Users and application owners expect that the systems they use will never go down, and if they do they will be returned to operation quickly with little data loss. In our article “Designing Primary Storage to Ease the Backup Burden” we discussed how to architect a primary storage infrastructure that is able to help meet these challenges. We call this design Protected Primary Storage. But this design can be expensive, especially if it is applied to every application in the data center.

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Market share: HP & Others up – everyone else down

IBM SVC 6.2 (with V7000) - SPC-1 520'043 IOPS

Good post by Robin Harris (thank you)

IDC’s Worldwide Total Disk Storage Systems Market for Q3 2015 had some interesting results. The thumbnail is the title of this post.

But there are a couple more details. ODM vendors – who sell direct to the hyperscale data center customers – had the fastest revenue growth of any supplier at 23.4%. HP’s revenue growth came in second at 16%, while the Others followed closely at 15.2%.

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Amazon, Azure and Google in race to the bottom … of cloud storage pricing

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Good post by Chris Mellor (thank you) over at El Reg

Storage 2016 A period of quiet, rest and reflection is what the storage industry needs after a frankly hectic and very eventful 2015.

It won’t get it. The opposing forces of simplicity and complexity, access speed versus capacity, server versus array, on premises versus cloud, and tuned hardware and software versus software-defined are still in deep conflict. And don’t forget the containerisation issues in the background.

There is also a growing generalised attack on storage data access latency, just to add something else into the mix.

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Merry Christmas from Storage CH Blog !

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SMR Drives: Are they too late to the game?

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Good post by Petros Koutoupis (thank you)

The sudden popularity over NAND Flash has spelled doom for traditional magnetic Hard Disk Drives (HDD). For years we have been hearing how HDDs are reaching the end of their life. We have also heard the same about Tape drives, long before that. Although, it would seem that the prediction on HDDs may become a bit more of reality, sooner than expected.

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Is Deduplication Useless on Archive Data?

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Good post by George Crump (thank you)

One of the techniques that storage vendors use to reduce the cost of hard disk-based storage is deduplication. Deduplication is the elimination of redundant data across files. The technology is ideal for backup, since so much of a current copy of data is similar to the prior copy. The few extra seconds required to identify redundant data is worth the savings in disk capacity. Deduplication for primary storage is popular for all-flash arrays. While the level of redundancy is not as great, the premium price of flash makes any capacity savings important. In addition, given the excess performance of AFAs the deduplication feature can often be added without a noticeable performance impact. There is one process though where deduplication provides little value; archive. IT professionals need to measure costs differently when considering a storage destination for archive.

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Data Retention for Dummies

Good post by Chris Mellor (thank you) over at El Reg

All is confusion. The old certainties are gone. New certainties just don’t exist. The shifting shapes, players, products and technologies in the storage landscape are seen through fog. How the heck does everything fit together?

After four days in Silicon Valley meeting startups the bewilderment ratio us even higher. It’s like Dragons’ Den, where each new player is shinier and brighter than the previous one, becomes your favourite but then, as sure as eggs are eggs, will be eclipsed by the next one.

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3D TLC NAND flash, your new SATA disk

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Good post by Luca Dell’Oca (thank you)

In 2014, in a presentation I’ve done, I’ve said to people that in 2-3 years new and cheaper flash memory would have become the standard solution for general purpose disk storage, thanks to a price per GB comparable with spinning disk. Seems that I was right after all.

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Peak Fibre Channel

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Good post by Tony Bourke (thank you)

There have been several articles talking about the death of Fibre Channel. This isn’t one of them. However, it is an article about “peak Fibre Channel”. I think, as a technology, Fibre Channel is in the process of (if it hasn’t already) peaking.

There’s a lot of technology in IT that doesn’t simply die. Instead, it grows, peaks, then slowly (or perhaps very slowly) fades. Consider Unix/RISC.

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Memory Management in ESXi 6

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Post by Joseph Griffiths (thank you)

A good friend recently reviewed the what’s new in vSphere 6 course and has some questions.  That generated a number of really great discussions and this blog article.   At about the same time I had a customer asking why their virtual machine was showing ballooning even thou there was no memory pressure.   This generated some research and though organization into this article

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