United States
Site Map Contacts Hitachi Global Community
Hu's Blog - Data Storage and Virtualization Thought Leader Hitachi - Inspire the Next

Hu Yoshida's Blog - Vice President | Chief Technology Officer

Home > Corporate > HDS Blogs > HDS Bloggers > Hu's Blog
Products, Solutions and more

Hu's Blog

What is the next step in Storage Virtualization?

by Hu Yoshida on Apr 10, 2014

In 2004 Hitachi Data Systems introduced the Universal Storage Platform, USP, which was the first storage array that could attach and virtualize third party Fibre Channel storage arrays. Instead of following other vendors by doing virtualization through an appliance that added complexity and another layer of management in the Storage Area Network, Hitachi chose to do virtualization through the storage controller.  By virtualizing external storage through the USP controller, the virtualized arrays could inherit the latest capabilities of the USP and be managed through the USP management interface. Limited function, dual controller storage arrays could now be virtualized and inherit all the functions of an enterprise array, including a global front-end cache with an extended number of host ports, and full synchronous and asynchronous replication.

Read More »

Business – Not Company Size – Should Define Storage Infrastructure

by Hu Yoshida on Apr 7, 2014

Traditionally, storage has been defined as either midrange or enterprise, based on the assumption that midrange or smaller customers did not need the performance and availability of larger enterprise customers. As a result, midrange storage could be built on a simpler, lower cost, dual controller architecture, where one controller supported the other controller in an active/passive mode. In other words, the data that was being stored in one controller cache was copied into the other controller cache so that if the primary controller failed the data in its cache could be protected and operations could continue through the other controller. This would ensure no data loss, but could impact performance since the surviving controller would have to support the entire workload. There is also the danger of data loss if the surviving controller also had a failure, so in most cases, down time is scheduled to restore dual controller operations. Dual controller storage arrays are fine if you can afford scheduled down time.

Read More »

Internet of Things and Train as a Service

by Hu Yoshida on Mar 28, 2014

Last week I was in the UK and had an opportunity to get an update on the Hitachi Train project, which was initially installed for the London Olympics. There has been a lot of progress in the past four years.

Read More »

Gartner’s Critical Capabilities Provides Transparency

by Hu Yoshida on Mar 19, 2014

Gartner has long been a major influencer in many technology markets. Many CIO’s include Gartner’s research assessment to support their evaluations before they make a buying decision.  Up to now, Gartner’s research methodology was comprised of the Magic Quadrant, also known as the Magic window for the graphical way that technology providers are positioned in four quadrants representing their position as Leaders, Visionaries, Niche Players and Challengers. For emerging or mature markets, Gartner’s MarketScopes is represented as the best tool to help clients understand how the status of an emerging or mature market aligns with their own state of maturity and future plans. Oftentimes these assessments seemed subjective since the criteria was not understood or the criteria did not seem to be applied in a consistent manner.  Also achieving an excellent in a MarketScope assessment did not help a CIO if two or more vendors got the same rating.

Read More »

Storage security must be designed in from the beginning

by Hu Yoshida on Mar 12, 2014

Storage security is getting more attention as I outlined in my top 10 trends post in December. In that post I talked about the availability of data encryption in the backend directors of Hitachi storage systems, VSP, HUS VM and HUS 150 with local or external key management. This encryption was designed into our storage system as well as many other security and privacy features. Security is not something that you can bolt on as an after thought.

Read More »

Avoid Buying More Storage Than You Need Today

by Hu Yoshida on Mar 3, 2014

Many data centers purchase storage infrastructure on a 3 to 5 year depreciation cycle. The problem with buying storage this way is that you have to buy more than you need for the first few years. These data centers have to over provision their storage requirements with capacity that is declining in price by about 24% per year. In 3 to 5 years when they are ready to use this capacity on the storage system technology that they purchased back then, new technology is already available to make storage systems even more efficient than before.  The decisions that they made 3 -5 years ago are still carried on the books as depreciation.

Read More »

HDS is a Gold Sponsor of OpenStack

by Hu Yoshida on Feb 21, 2014

HDS is a gold sponsor of OpenStack, and will be at the OpenStack Summit in May in Atlanta, GA where we will demonstrate our commitment to the OpenStack community with both sessions and demonstrations. We need your help to secure speaking opportunities for HDS at this event. Our speaking proposals are below.  Voting takes place between now and March 2nd, so PLEASE CAST YOUR VOTE! If you don’t have an account you can click here to create one.

Read More »

“One of rare storage giants with servers to execute this year” StorageNewsletter.com

by Hu Yoshida on Feb 13, 2014

Recently StorageNewsletter reported Hitachi’s Fiscal 3Q earnings, which ended in December of 2013, they noted that Hitachi Data Systems is “one of the rare storage giants” that is also in servers and is ready to execute this year (2014) in hardware as well as in systems.

Read More »

Free Deduplication With No Compromise

by Hu Yoshida on Feb 11, 2014

In my last post I talked about the explosion of copies that IDC says is now 65% of our external storage capacity, and I outlined ways to reduce the number of copies, reduce the capacity of copies and quantify the cost savings of reducing copies.

Read More »

Controlling your explosion of copies may be your biggest opportunity to reduce costs

by Hu Yoshida on Feb 6, 2014

Laura DuBois of IDC has been calling attention to the explosion of data copies problem since 2012 and I have blogged about this several times, including  my top ten trends for 2013 and 2014. Her latest report on January 31 of this year reconfirms that 65% of external storage systems capacity is used to store non-primary data such as snapshots, clones, replicas, archives, and backup data.

Read More »

Next »

Hu Yoshida - Storage Virtualization Thought LeaderMust-read IT Blog

Hu Yoshida
Vice President and Chief Technology Officer

Connect with Us


Recent Videos

Switch to our mobile site