Virtual Volumes (VVols) and Replication/DR

Good post by Cormac Hogan (thank you)

There have been a number of queries around Virtual Volumes (VVols) and replication, especially since the release of KB article 2112039 which details all the interoperability aspects of VVols.

In Q1 of the KB, the question is asked “Which VMware Products are interoperable with Virtual Volumes (VVols)?” The response includes “VMware vSphere Replication 6.0.x”.

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Not all Snapshots are the same

Good post by George Crump (thank you)

In an upcoming webinar, Storage Switzerland will make the case for using snapshots as a primary component of data protection. For this strategy to work several things are needed from the storage infrastructure. First, it must be able to keep an almost unlimited number of snapshots; second, it needs to have a replication process that can transfer those snapshot deltas (the changed blocks of data) to a safe place; and third, the entire storage infrastructure has to be very cost effective. In this column we will look at that first requirement, the ability to create and store a large amount of snapshots without impacting performance.

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Pure Storage gets closer to vCenter and SRM

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

Convergence rules. Pure Storage is making its arrays better citizens in the VMware world by better integrating its admin services with vCenter.

Forget Purity, so to speak. VMware vCenter admins can drive Pure Storage replication, snapshots and provisioning though Site Recovery Manager and a Pure plug-in.

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Microsoft’s Scale-Out File Server Overcomes SAN Cloud Barriers

Good post by Paul Schnackenburg (thank you)

There are no SANs in the cloud because the venerable storage technology just doesn’t scale to that level. But there are ways around it, and Microsoft shops should start with the company’s Scale-Out File Server.

There’s a revolution going on in storage. Once the domain of boring but dependable storage-area network (SAN) arrays, there’s now a plethora of choice, including all flash storage (with varying different underlying technology) and server-message block (SMB)-based storage.

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What is Copy Data?

Good Post by George Crump (thank you)

Copy Data is the term used to describe the copies of primary data made for data protection, testing, archives, eDiscovery and analytics. The typical focus of copy data is data protection to recover data when something goes wrong. The problem is that each type of recovery requires a different copy of data. Recovery from corruption requires snapshots. Recovery from server failure requires disk backup. Protection from disk backup requires tape. Finally, recovery from a site disaster requires that all these copies be off-site. Add to the data protection copy problem, all the copies being made for test/development, archives, eDiscovery and now analytics. The end result: copy data is about much more than data protection and providing the capacity to manage all these copies has become a significant challenge to the data center.

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HP StoreVirtual VSA – An introduction

Good Post by Patrick Terlisten (thank you)

In 2008 HP acquired LeftHand Networks for “only” $360 million. In relation to the acquiration of 3PAR in 2010 ($2.35 billion) this was a  really cheap buy. LeftHand Networks was a pioneer in regard of IP based storage build on commodity server hardware. Their secret was SAN/iQ, a linux-based operating system, that did the magic. HP StoreVirtual is the TAFKAP (or Prince…? What’s his current name?) in the HP StorageWorks product familiy. 😉 HP LeftHand, HP P4000 and now StoreVirtual.

Read on here and also have a look a this Post from Karim Vaes (thank you) about Network RAID

Why is DataGravity Such a Big Deal?

Good Post by Stephen Foskett (thank you)

DataGravity just released their embargo and my little techie corner of the Internet is on fire. There’s a very good reason for that, but it might not be obvious at a glance. Read on to learn why DataGravity is a Big Deal even though it might not work out.

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UPDATE : See the DataGravity Discovery Series Product Overview in this video

Understanding the Oracle Data Protection Gap

Post by Colm Keegan (thank you)

For many, snapshots are the go to data protection method for protecting Oracle databases. They can provide efficient, rapid protection from database corruption with high data integrity. But snapshot data protection has its limitations. First, snapshot copies can become corrupted if there is an application corruption issue. Secondly, snapshots will be lost if the storage system fails. And then of course there are retention limitations with maintaining snapshot data on primary storage as most systems only support around 250 snapshot copies. Therefore data has to be copied to another device that is independent of the primary storage device.

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Users bullish on virtualizing storage and software-defined storage

Post by Rich Castagna (thank you)

Survey finds 89% of users virtualizing storage are “Very satisfied” or “Satisfied.” Software-defined storage also heavily deployed.

A somewhat surprising 43% of survey respondents report they have virtualized at least some of their storage to pool those resources. And the results are a stunning success: 89% gave a “Very satisfied” or “Satisfied” thumbs up, 36% said they’re wasting a lot less capacity and 47% have realized some new efficienciesStorage virtualization methods vary, with decisions typically based on what kind of gear is already installed. Our respondents indicated a nearly even split among array-based storage virtualization, appliance-based and software installed on a server.

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XtremIO for SQL Server: More than just performance

Post by Bryan Walsh (thank you)

By now, everybody knows that flash is the go-to technology for high performance workloads. The marketplace is being flooded with all-flash arrays from established storage companies and startups alike to capitalize on the demand. Each vendor is eager to say “Me, too!” and check off all of the features that everyone would expect from an enterprise storage solution. However, when evaluating the right solution for your SQL environment, it is important to know how effective and efficient these features have been implemented.

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