Author Archives: Sai

About Sai

Sai V. Nagarajan is a Vice President at Vembu Technologies.

Erasure Coding – Key to Backup dependability

Surely, there’s nothing more important to your company than the data your users access and store every day.  For this reason alone, system admins would have evaluated and deployed a BDR solution in place, planned for the schedule of backups, configured them based on organizational RTO and RPO considerations and then spend a good amount of time monitoring the backups for alerts and notifications. So far, so good, But…

correct

How do you know for sure that the data you backup can be restored without a glitch ? 

Where is the assurance on the integrity of the backup, whether it is on-premise or in the cloud ? 

 

Cone of Constraints

Data integrity is intricately intertwined with the technical sophistication with which the BDR product implements its error detection processes and incorporates fail-proof checks for corruption and subsequent steps for correction. However, all solutions are not equal on this count of proactively identifying data corruption preventing corrupted data from being transferred during the backup process.

Lets be clear that occurrence of data loss is inevitable due to the probability of either underlying storage hardware failures hosting backups or transfer of corrupted data blocks. There are huge trade-offs associated with competing priorities – performance, fault tolerance and time-to-market. Due diligence, therefore, has to be the prerogative of the system admin in carefully picking the right BDR solution that scores masterfully on all counts and drastically reduces the possibility of any data corruption.

Data Loss Circumvention

Traditionally, storage protection encompasses two main methods of protection, namely, Replication and RAID.

RAID (Redundant Array of Inexpensive Disks) is a storage virtualization scheme for dividing and duplicating data across multiple physical drives. There are a number of schemes ranging from RAID 0 to RAID 6. Raid 1 for instance provides data redundancy on a mirrored set of disks and RAID 6 incorporates double distributed parity to ensure no data loss for upto two failed drives.

Backup software vendors opt for replication, as a “backup for backups”, where one or more copies of the primary backup bundle is transferred and stored either locally or offsite for high availability and disaster recovery.

Enter Erasure Coding

A better alternative to Replication, in terms of costs, was made possible by the advent of a specific technology – Erasure Coding. It is similar to RAID technology, which generally adds parity as overhead. The difference being, while RAID works on the hardware level, erasure coding applies it to an object level. Basically, erasure code provides redundancy devoid of the overhead of replication. It divides any data stream (data blocks, file chunks) into “X” fragments and recode them into “X+Y” fragments. The key property of erasure codes is that the original object can be reconstructed from ANY of the X fragments. Hence integrity checks based on erasure coding tend to be more robust.

Vembu BDR v6.1 – Coming soon

Our patent pending VembuHIVE technology which is the foundation of the Vembu BDR v6.1 platform, possess inbuilt integrity checks using sophisticated erasure coding techniques that could detect and correct multiple errors at several breakpoints of failure- backup file level, disk image-level, chunk- level, backup-level, repository-level and client -level. This way, you can be assured that the quality of our backups have met and surpassed stringent expectations of data integrity and durability.

There are many exciting new developments with our upcoming version 6.1. Just go ahead and download the recent whitepaper to learn more about some of them.

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Vembu VM Backup – Total Virtual Data Protection for Business

BYOD and Cloud computing may be the most publicly sticky buzzwords but there is another dominating and revolutionary trend that is actually past its hype cycle and in the forefront of creating an efficient IT infrastructure. It is one known to potentially optimize on computing resources, consolidate lower capital expenses, scale workloads, ease operational management and even save on power consumption among other benefits. No doubt, this multifaceted paradigm of Virtualization is redefining the IT infrastructure landscape.

However, Virtualization for IT is a broad term and applies to storage, network, server, desktop and mobile among the conceivable areas. For our purpose, we will narrow the focus on server virtualization.

How prevalent is it ?

A recent survey by Cisco FlexPod Express Study of SMB IT professionals revealed that 77 percent of their SMB companies have adopted server virtualization and nearly all of them have secured a competitive advantage as a result.

Further, the extent of adoption is reinforced from a different perspective by the Gartner Magic Quadrant report according to which, as of mid-2013, almost two-thirds of x86 architecture workloads have been virtualized on servers.

How to ensure data protection for  a virtualized or hybrid environment ?

The era of sweeping virtualization has given cause to new considerations and challenges for the aspect of data protection for businesses. We @ Vembu ensure End to End Data Protection & Business Continuity that comprehensively covers both physical and virtual environments.

Explore Vembu’s solution for Virtualized server protection.

Try our Vembu VM Backup – a complete virtualization data protection solution for businesses and you can :

  • Protect thousands of virtual servers with our agentless solution that reduces both deployment complexities and server resource consumption
  • Simplify backup of VMware, Hyper-V and Xen environments with our multi-hypervisor support.
  • Image based backups are taken in native format which enable instant restores thereby reducing RTO and RPO
  • Rapidly and efficiently enable WAN optimised replication
  • Leverage performance boosting Change Block Tracking (CBT) for incremental backup of VMs.
  • Provide 100% application aware disaster recovery
  • Perform flexible granular restores at the VM, volume, and file or application object level.

Interested in a free trial on Vembu VM Backup?

VMware backup

By the way check out our  Pricing , it will blow your mind away!

 

By Sai V. Nagarajan, VP of Marketing at Vembu Technologies.

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SyncBlaze in 2013 – A look ahead

Looking back in the rear view mirror while on the road ahead, I can definitely  say that 2012 was a terrific year for SyncBlaze, a fact amply borne out by many intangible as well as measurable aspects, some of which were laid out in detail by Sajesh in his recap post. We are extremely pleased to have acquired close to a hundred partners that have deployed this solution for their many customers and innumerable users. In addition, the accruing buzz in the midst of thousands of inquisitive service providers and resellers who have contacted us during this past year to learn more about our channel focussed business file sharing and collaboration solution does lead me to believe that we can assuredly look forward to a breakout year in 2013.

Continue reading

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Interop NYC 2012 – In retrospect

Interop | Javits Center, New York, NY | October 1-5, 2012

Len and I heard from a wide spectrum of participants ranging from the Senior executives at large enterprises (like McGraw Hill, Tata communications, Nippon Life etc) to Data center providers, Large Managed Service providers , Small and Medium IT services providers, regional distributors, small businesses and even self employed individuals as well besides a few existing partners who graciously stopped by to wish us.

Though the attendance, concentration of appropriate audience and booth participation was less than we had expected from this highly touted hub for peer networking among technology professionals, I want to rather focus on the important lessons we gathered from those selective and stimulating moments at the expo where we met with professionals who wanted to make sense of the groundbreaking advances in mobility, cloud computing, data center and virtualization solutions and discussed with us on our offerings that could be of value to them.

    

    

I want to share some pointed highlights from this event

(1) A majority of the IT professionals and executives we met showed a lot of interest in SyncBlaze solution as one of the means of adapting to the BYOD policy developments at their respective businesses emerging as a result of the consumerization of IT trend.  Given that employees are choosing to use their own mobile and tablet devices for business tasks whether their IT departments support it or not, a BYOD policy based on user’s role and device types enforced by a productivity enhancing business solution like SyncBlaze holds out promise to the IT admins to help control this usage and mitigate security risks without alienating that principle idea whose time has come.

(2) Data center Providers shared that even considering the enormity and complexity of migrating IT functions to the cloud, a favorable disposition existed towards private cloud for small and medium businesses which indicates that smaller firms are willing to consider shipping their infrastructures off-premises and that dedicated hosted environments will see significant adoption.  MSPs were quite keen to learn more about how they can offer StoreGrid Cloud as a way to offer cloud-based disaster recovery and online backup services to their customers.

(3) Comparisons galored everytime a conversation steamed up around our services and we were constantly requested for differentiation from services like Dropbox and Egnyte. To quote an example, we even had a Solution provider of video communication for Large enterprises share considerable time chalking out an elaborate set of requirements on paper with us that lined out scaling expectations of his customer segment in terms of Encrypted File container security, Event Auditing, Windows NTFS permission propagation, Cloud File Server as Mapped drive, Remote Data wipe, Bandwidth throttling and DLP.

Though we feel that Interop show was a mixed bag in the end, we do have a few takeaways in terms of what the growing expectations of the market are shaping out to be for the kind of services we offer and also help us in leading towards the direction of bolstering our service offerings suitably for the game changer level in order to tap into the deep and latent potential that it represents for our partners serving their SMB customers.

 

By Sai V. Nagarajan, VP at Vembu Technologies, who is responsible for product management of the file sharing and collaboration solution, SyncBlaze.

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Launching Cloud Content Management Service for Channel Partners – SYNCBLAZE

The year 2012 is shaping up to be a defining moment for Vembu’s cloud services portfolio. We are immensely delighted to announce the launch of the business focused edition for our cloud content management solution – SyncBlaze! With this premier solution, we hope to make it easier for solution providers serving the small and midsize business market to offer robust, cost-effective, high performance content management solutions in the cloud. Continue reading

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Advice from Dr. Share More: How I learned to Stop worrying and Start loving the Information Overload!

While cautiously brooding over the impact of frictionless sharing in our lives, i felt it apt to borrow a leaf from the title of one of the greatest satirical movies of our times about a nuclear scare triggered by the actions of a crazy general. The nuclear apocalypse foreseen due to the policy of MAD (mutually assured destruction) bolstered by the buildup of missiles by proponents during the cold war formed the basis for that satire by Stanley Kubrick. Continue reading

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Zukmo – Our Five Tech Predictions for 2012

Well, its the season for predictions and we are on time rolling out our Trend spotting dice for the new year 2012. I saw this list from IBM which predicts trends out for next 5 years !

With big blue on their side, who are we to dispute that call ? A lot more has been said from various quarters for sure by now, but we simply had to throw our hat in the ring and add our 5 cents on the tech sector. Continue reading

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We need an Apps r’ us

Want to know what else is overloading our brains and eyeballs these days ? It’s those dime a dozen apps that keep raining down and drenching our smartphones, tablets, desktops and the web. We hear that there may be a million mobile apps around across all platforms, half of which are in iPhone and iPad alone. Continue reading

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Zukmo Release update – Mobile web and more

Our developers have been cranking it up over the past few weeks to provide you with a number of quick and shiny updates and we’re darn happy to report the release of a stream of noteworthy improvements designed to spruce up your Zukmo workspace. Continue reading

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Whats a Zettabyte ?

The Information complex competes with Astronomy in how much bigger its going to get and how far we are going to go. After Petabytes and Exabytes, we have been given the Zettabytes. Supposedly, you will hear a lot about this extraordinary quantum of data measurement by 2015 as per an infographic courtesy of Cisco on internet traffic though we have likely crossed this figure in terms of data created and stored worldwide. Continue reading

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