NVMe fabric flash and deduping VSAN lead

The Future Road Sign with dramatic clouds and sky.

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

EMC has new storage products coming in both external shared array form and in its converged and hyper-converged systems lines of products, using new VSAN capabilities.

These will be announced over the next two quarters and will change the shape of EMC’s product lines. We think we now have an overall view of what the mainstream product lines will look like.

This information comes from EMC’s latest quarterly results earnings call, from various sources, and from blogs by EMC VCE president Chad Sakac.

The background includes the point that VMware’s VSAN/EVO:RAIL/EMC VSPEX Blue products have not apparently been successful, hence the need for a revamp of the core VSAN software.

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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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The Storage Requirements for 100% Virtualization

Post by George Crump (thank you)

After a rapid move from test to production, virtualization of existing servers in many companies seems to slow down. While it is true that most data centers have adopted a virtualize first philosophy, getting those older, mission critical workloads virtualized seems to be a thorny issue. These applications are often at the heart of an organization’s revenue or customer interaction and tend to be unpredictable in the resources they require. This is especially true when it comes to storage and networking.

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What is NVMe? And what does it mean for PCIe-SSD?

Good post by George Crump (thank you)

There are two constants in data center storage; the need for greater performance and the need for greater capacity. Flash based storage devices have become the go-to option to address the first challenge. But application owners and users quickly move from an initial euphoria with flash performance to demanding more. Since the flash NAND is essentially the constant in the equation, the surrounding infrastructure has to evolve to extract optimal performance from the technology. But achieving maximum performance often leads to proprietary architectures and designs. NVMe (Non Volatile Memory) is a new industry standard that enables data centers to realize full flash potential without compatibility headaches.

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XPoint put under the analyst microscope

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

80-page report gets under the skin of memristor-slaying 3D XPoint tech

Semiconductor market researcher Jim Handy of Objective Analysis has produced an 80-page report looking into what XPoint memory is, how it could be used and what its prospects are.

XPoint memory was unveiled by Micron and Intel in July to general amazement. The pair claimed it was 1,000 times faster than NAND, ten times denser and also less costly than DRAM, and would form a new memory hierarchy between DRAM and flash.

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VVOLs and VMware

Post by Christine Taylor (thank you)

The definition of VVOLs is simple but the effect is ground-breaking. Here is the simple definition part: Virtual Volumes (VVOL) is an out-of-band communication protocol between array-based storage services and vSphere 6.

And here is the ground-breaking part: VVOLs enables a VM to communicate its data management requirements directly to the storage array. The idea is to automate and optimize storage resources at the VM level instead of placing data services at the LUN (block storage) or the file share (NAS) level.

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VMware VSAN… and the missed opportunity

Good post by Enrico Signoretti (thank you)

One of the most interesting (among the few) announcements at VMworld was about VSAN 6.1. The product is quickly maturing and new features are being added version after version (here what’s new). And the product promises to be even better (with erasure coding and dedupe coming up in the next version!).

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Docker and Storage – Understanding Docker I/O

Good Post by George Crump (thank you)

Designing a Docker Storage Infrastructure

A recent Storage Switzerland report covered the basics of Docker and Storage; what Docker is and how it impacts storage. Container technology and Docker specifically places unique demands on the storage infrastructure that most legacy storage architectures are ill-prepared to handle. The initial concern is developing a storage infrastructure that will support a container based dev/ops environment. The second concern is that these infrastructures will have to support containers in production as the value of something more granular than a virtual machine (VM) is understood.

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Is Software-Defined Storage Enough?

Good post by George Crump (thank you)

Initiatives like server virtualization, cloud infrastructure-as-a-service, and real-time analytics are allowing IT to meet today’s ever-increasing business demands. These initiatives are designed to bring agility to the data center, yet they trip and fall when they have to interact with the silo’ed storage infrastructure. Software Defined Storage (SDS) was supposed to be the answer. But for the most part, SDS is really storage software without the reliance on dedicated hardware, and is limited to specific storage containers. Most SDS solutions cannot extend a container across vendors, formats (file, block, object) or protocols. Even hyper-converged systems don’t help. They attempt to solve this problem by moving all enterprise data into a bigger and proprietary container at the server layer.

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HDS storage is faring better than EMC’s trad arrays, reckons analyst

Post by Chris Mellor (thank you) over at El Reg

EMC is ahead overall with HDS mounting an IoT catch-up

HDS storage revenues are declining, but not as much as EMC’s core storage business. Joe Tucci’s business is doing better in its move to add business outside its trad arrays and HDS is mounting an Internet of Things catch-up, looking to store and analyse the hoped-for IoT data deluge.

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