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Who’s Doing Software Defined Storage?

Without a clear definition, it’s difficult to answer the question posed as the title of this post.  Last time I mentioned Hitachi, VPLEX from EMC, Nutanix and SolidFire.  Since posting the last blog entry, I’ve had representations from Coraid (check out this presentation) and Zadara Storage (yet to be evaluated).  So who else is claiming SDS?  I’d be interested to ... Read More »

Violin Memory acquires Gridiron Systems

Yesterday, Violin announced that they have acquired Gridiron Systems, a vendor of cache acceleration hardware and software.  At the outset it may seem odd that an all-flash vendor would want to acquire a company offering acceleration for traditional arrays, however this could be a very smart deal indeed in a number of ways. Software is King Although hardware is important ... Read More »

Storage QoS – How Hard Can It Be?

Following up from yesterday’s post and the comments received, I thought it was worth considering how hard it would actually be to implement quality of service within a storage array. Almost all storage arrays available today (whether physical or virtual) work on the assumption that I/O should be delivered as fast as possible.  This is not an unreasonable premise, especially ... Read More »

Storage QoS In The Cloud

Last year I did some research and wrote up a couple of posts on Cloud Compute performance.  One feature that seems to get left out somewhat is storage I/O performance; the cloud offerings talk about capacity, but rarely reference performance. Recently, I reviewed the options available from the major providers and found two new storage performance offerings. AWS (Amazon Web ... Read More »

Quick Post: Thought Provoking Hitachi Blogs

There are a couple of good blog posts worthy of a look over at the Hitachi website this week, good enough for me to post references to them as they aren’t purely about the latest hardware product on offer. First, Dave Merrill (aka The Storage Economist) talks about storage cost ratios in “Back to 1999 Capex Ratio“.  Dave’s content is ... Read More »

Making Sense of Storage Vendor Growth Comparisons

Figure 1 - Gartner ECB All Vendors

Each quarter, Gartner produces a report listing their estimates on figures for sales of external storage arrays, otherwise known as “external controller-based” disk (ECB).  The figures for 3Q12 are just out and make interesting reading.  IBM, HP, Dell and Oracle are all down on their position 12 months ago, whilst the other vendors have seen growth, with the best figures ... Read More »