Storage & Clustering Community Blog

Hadoop High Availabilty or Highly Available Hadoop

Rags Srinivasan | 05 Jun 2012 | 0 comments

For enterprises, what comes first?

Adopting a solution that is not highly available and then try to make it enterprise ready or start with high availability as core feature then add the power of analytics?

In my past few articles I wrote about the challenges to adopting Hadoop in the enterprise and what it would take to make it enterprise ready. One of the points I highlighted is the NameNode high availability or the lack of it. In Hadoop Distributed File System (HDFS), NameNode is the metadata server that has the location information for data blocks distributed across DataNodes. If NameNode fails, the cluster would be unavailable to analytics applications.

The Hadoop community has been working on a solution to add High Availability to HDFS. The solution entails adding another NameNode with shared storage and changing DataNodes to send...

Symantec Solution for Big Data Featured in IDC Link

Rags Srinivasan | 30 May 2012 | 0 comments

IDC analysts Jean S. Bozman and Laura DuBois published their latest analysis from Symantec Vision conference. In the May 15th IDC LINK (subscription required) they had this to say about Symantec solution (bold text mine)

Big Data. Symantec is readying a product that leverages its clustering file system (CFS) to manage Hadoop-style workloads for the enterprise, through compatible APIs. The solution, which is designed to enable datacenters to leverage open-source Hadoop for enterprise workloads with high availability, will use customers' existing infrastructure. Although the broad outlines for this offering were discussed at VISION during technical sessions, this product would be...

Fixing Hadoop's Single Point of Failure With Veritas Cluster Server

Rags Srinivasan | 01 Jun 2012 | 2 comments

Hadoop is an open source solution from Apache for managing and analyzing Big Data. Its scale-out architecture enables analyzing large volumes of data to find key business insights. Enterprises are turning to Hadoop for its agility and flexibility in data analysis. Hadoop enables enterprises make sense of varieties of data - structured to unstructured - and ask insight questions they were not able to do with traditional tools.

However Hadoop's Distributed File System (HDFS) has a weakness that makes it unattractive to enterprise datacenters. HDFS's meta data server, NameNode, is a single point of failure. When NameNode fails, applications lose access to data stored in many different DataNodes. In a long running analytical application a single failure can prevent enterprises from getting timely business insights.

Symantec's recommendation is to completely eliminate this flaw with a solution we are working on for...

Does your business continuity plan stand a chance against mayhem

Raissa_T | 16 Jan 2012 | 0 comments

Many organizations believe that they have a solid and ready to execute business continuity plan in case of a disaster. However, according to a 2010 Forrester survey*, “many organizations have lulled themselves into a false sense of security” when it comes to how they value their preparedness. The survey also revealed that proper plans of planning, testing, and maintenance are not actively tested as often as they should be. This lack of preparedness is a costly strategy in terms of revenue, employee productivity, reputation, among other factors. Specifically, the survey found that an average recovery took 18.5 hours with 4.8 hours of data loss. In addition, according to a StorageCraft blog, in 2011, disasters cost $52B versus $10B in 2010. These numbers clearly indicate that organizations must evaluate their business continuity...

New Release: Symantec ApplicationHA 6.0 for Windows

Chaya Adatrao | 16 Nov 2011 | 0 comments

As IT organizations continue to rapidly deploy virtualization, ensuring availability of applications in their virtual environments is critical. Since its initial launch last year, Symantec ApplicationHA helped numerous customers quickly and automatically recover from a wide range of application and infrastructure failures inside virtual machines.

Symantec recently announced the latest release of Symantec ApplicationHA 6.0 for Windows. This release includes integration of Symantec ApplicationHA with Symantec Backup Exec which takes application availability to a new level by providing another level of remediation to recover from failures in VMware virtual environments. This new feature provides virtual machine image restoration as a possible remediation mechanism if application restart and virtual machine restart both fail in recovering an application. In the event of a corrupt virtual machine or OS image, Symantec ApplicationHA coordinates with...

Does the idea of virtualizing your data center make you cringe?

Raissa_T | 06 Jul 2011 | 0 comments

For some organizations, the idea of virtualizing their mission critical applications is perceived to be more riskier and its advantages are not yet compelling to make the switch. In fact, according to Symantec's latest Virtualization and Evolution to the Cloud Survey, 40% of CEOs and 42% of CFOs are reluctant to make the leap to virtualization. Some of the cited reservations are around downtime and the lack of visibility into virtualized environments. However, IT users can get around these challenges by making sure that they deploy virtualization tools that are suited for their particular needs. A foolproof virtualization plan can deliver cost savings, efficiency, increased productivity, high availability, disaster recovery, etc. Recently, Dan Lamorena, Product Marketing Director within Symantec's Storage and Availability Management Group authored an article in the Virtualization...

Success Story: New Customer and Partner Stories, May/June/July 2011

Kimberley | 14 Jul 2011 | 0 comments

SwapDrive (now part of Symantec)
By far the world’s largest software-as-a-service (SaaS) provider of Consumer Online Backup solutions, SwapDrive (now part of Symantec’s Norton Data Services business unit) serves 13.5 million active users and manages more than 68 petabytes of data. Symantec acquired SwapDrive in 2008, but even before the acquisition, SwapDrive relied on Symantec storage management and server clustering technologies to:

Reduce hardware costs by up to 80 percent.
Minimize downtime for customers.
Help IT staff manage ever-accelerating data growth.

BT Frontline Pte Ltd
What has made Singapore-based BT Frontline Pte Ltd into one of the largest IT service providers in the Asia...

To RAC or Not to RAC? Veritas Cluster File System Responds "No RAC Needed"

Fahima | 23 Jun 2010 | 0 comments

Check out To RAC or Not to RAC? Veritas Cluster File System Responds "No RAC Needed," the latest blog installment on failover solutions by DCIG lead analyst Jerome Wendt. Find out how the facts illustrate that Veritas CFS HA provides performance that is comparable to Oracle RAC without RAC's added cost and complexity.

Jerome Wendt is the President and Lead Analyst of DCIG Inc., an independent storage analyst and consulting firm. Since founding the company in 2006, Mr. Wendt has published extensively in data storage publications and journals covering all facets of storage.

Is Fast Failover Minus High Costs, Complexity and Uncertainty Attainable? See What Jerome Wendt Says…

Fahima | 15 Jun 2010 | 0 comments

Check out Veritas CFS Proves that Fast Failover Minus High Costs, Complexity and Uncertainty is Attainable, the latest blog on failover by DCIG lead analyst Jerome Wendt as he looks at alternatives to classic high-availability solutions.

Breakout Session Videos from Vision on Connect

Mike Reynolds PMM | 29 Jun 2010 | 0 comments

Hello Connect Users,

If you attended the Vision Conference last month, you learned about the latest in storage management and high availability / disaster recovery (HA/DR) technologies that Symantec is offering. Of course, if you were on-site it is difficult to make it to all of the sessions, so we have videos available from several of the presentations that you may watch on-demand. If you were not able to make it to Vegas, now is a great chance to see these sessions at your fingertips. Here is a listing of the available videos:

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