Storage and Availability Management Blog

The Storage and Availability Management Group at Symantec is dedicated to providing solutions that enable efficient storage management and highly available infrastructure. Find news, information and tips that help you to resolve your storage management, high availability and disaster recovery issues across the heterogeneous data center.

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  Updated: Mike Reynolds PMM 07 Aug 2012

  New Release: Introducing Veritas Storage Foundation and Veritas Cluster Server 5.1

  Veritas Storage Foundation and Veritas Cluster Server 5.1 are now available to customers. Below are a few key areas of innovation that you can expect in version 5.1: Zero reboot install and zero reboot upgrade to version 5.1: • Rolling upgrades for Storage Foundation, Cluster File System, Veritas Cluster Server and Storage Foundation for RAC clusters • Smaller host footprint with a 70% reduction in the number of packages for the full distribution • Removing the need for license keys to enable product functionality. To learn more, visit the keyless licensing blog and the keyless licensing video. Fully automated Solid State Drive (SSD)...
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  Updated: mobilegleed 22 Mar 2012

  Answers to Common VCS One Questions

  A few weeks back a large number of Product Managers, Technical Product Managers, and Sales Engineers (SEs) gathered for our annual SE Symposium in Las Vegas.  VCS One was definitely on everyone's mind, especially with the upcoming 5.0 release.  Here's a summary of the Q & A from the VCS One sessions I attended. Question:   How many Policy Masters (PMs) are needed for a VCS One Cluster? Answer:      One PM per cluster.  Larger environments will implement multiple VCS One Clusters per data center. Question:  Does the PM have to run in an active/passive cluster? Answer:     Do to the critical role of the PM dedicating hardware is best to ensure performance, reliability, and availability.    Question:  Can we run other apps on the PM cluster? Answer:  ...
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  Updated: nicole_kim 05 Mar 2010

  DCIG Thin Provisioning Blog

  Check out Going from ‘Fat’ to ‘Thin’ Isn’t an Automatic in the Virtual World Either, the latest blog on thin provisioning by DCIG lead analyst Jerome Wendt. He breaks down the various scenarios for when the benefits of thin provisioning are easily realized and when it is not so readily recognized, as there can be issues with deployment and utilization in certain circumstances. He discusses how Veritas Storage Foundation’s SmartMove feature can help larger enterprises maximize their thin provisioning investment. 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.
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  Updated: Eileen 01 Apr 2010

  Welcome to the new Clustering and Replication Community!

  Welcome to the new Symantec Connect and specifically to the Clustering and Replication Community. What a great opportunity to really build a vibrant and engaging community all about high availability and disaster recovery! Now to introduce myself, I’m Eileen Allan, the new Clustering and Replication Community Manager. I’ll be managing and moderating the content for this area of Symantec Connect. Please feel free to drop me a note with your thoughts, ideas or suggestions. I’d be interested to learn what kind of information is important to you. What topics are of interest, or what problems are you trying to solve . . and by all means, let me know what you think of the new site. Everyone is invited to participate and share technical knowledge and experience with the community. Take a few minutes to start a forum discussion or ask a question. Your expertise can help someone else in the community solve a problem. Why not write an article or a blog...
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  Updated: Eric.Hennessey 05 Mar 2010

  Business interrupted

  Author’s Note:  It’s come to our attention that while this is primarily a technical blog geared towards current users of Veritas Cluster Server (VCS), there are some readers of this blog with little background in clustering for availability.  So with that in mind, we begin a series of posts which we hope will provide some foundation knowledge for those aspiring to HA Gurudom. Nod if any of this sounds familiar … Your company demands IT services that pretty much never go down. After all, business availability and IT service availability are inextricably linked today. But things happen. Like hardware failures. Power outages. Upgrades. Patches. Shrinking budgets. And other natural and man-made disasters. Your basic Career Limiting Event™ when the revenue generating or customer facing application goes down. Given such an environment, is it even possible to achieve application dial tone and the like? Sure....
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  Updated: Ameya 10 Dec 2010

  Dynamic Multi Path (DMP) - Historical Perspective and Evolution

  The Dynamic Multi Path (DMP) capability was first introduced in Volume Manager 2.5.7 release primarily to support A/A multi path arrays from Sun Microsystems. In those days, the early version of arrays had SCSI connections with fat and thick cables running from host to the array directly. Unlike the present day modern arrays, there was no concept of fabric switches, and no fiber channel (FC) technology enabled on the arrays. The first DMP could do only multi path operations such as load balancing using balanced path I/O policy, path failures and restoration by using SCSI inquiry commands. Since the number of devices were handful, the error processing and restore processing were all single threaded tasks. Further, as the number of supported arrays was small, the entire device discovery and reconfiguration was closely tied to the parent operating system. The next major enhancements of DMP were introduced in Volume Manager 3.1.1 release that had support to co-exist with...