Archive for March 2010

Don’t get duped by dedupe

Wednesday, March 31st, 2010

Last week, in her blog post titled “Software Deduplication: When is Free Not Free?”, ESG analyst Lauren Whitehouse made some really good points about the hidden costs of “no cost” dedupe in backup applications. Over the course of the last year or two, we’ve seen several backup vendors jump in with their own built-in dedupe feature. Whitehouse is spot on when she notes that for existing users, adding it oftentimes comes at a cost.

At i365, we’ve been offering our own built-in dedupe feature for more than a decade – for both on-premise software and Cloud backup customers – at no extra charge. There is no extra/hidden charge for customers to use it as it has always been a standard and core feature to our software and service. So in our case free really means free.

For buyers looking for a backup software solution with built-in deduplication, it’s important that you ask lots of questions and know what you’re getting.  Our customers ask a lot of great questions, and one way we help them understand is to first explain the two main types of deduplication they are likely to see for disk-based backup and recovery:

  • Source-side deduplication: This method compares today’s planned backup data against the last backup job’s data at the source. Since much data remains the same from backup to backup, source-side deduplication finds, transmits and stores only the new blocks or differences (deltas) found since the last backup.
  • Target-side deduplication: This typically happens on the backend (on the media server or “vault”).  It compares the differences and similarities of data within a certain group.  Differences might be compared between two or more files or two or more data blocks. If two or more duplicate files or blocks are found, the solution will retain one copy of the file with two (or more) unique pointers.

As a general guide, if you’re trying to evaluate the merits of deduplication technology for backup and recovery, you should look at how well the solution can successfully balance the following three goals:

  1. Significantly decrease the storage footprint or capacity required for backup data
  2. Minimize utilization/impact on your network and source systems
  3. Reasonable investment cost for the benefits gained now and in the future

The following set of questions may help focus further inquiry into built-in deduplication:

  • When and where is deduplication applied in the backup process?
  • If I have more data but not a huge WAN pipeline, how will the deduplication process help me get my data offsite the most cost-effectively?
  • How will deduplication impact my recovery time objectives?
  • How will deduplication affect my backup window or any need to perform “hot backups” of key applications like Microsoft Exchange?
  • What will the deduplication components and additional hardware required cost and what is my expected ROI?
  • If the solution is designed to offload deduplicated backup data to physical tape, what are the steps necessary to restore and how long could it take?
  • If I wanted to perform backup and deduplication at various remote offices, do I need specialized hardware or media servers at each location?
  • How does the deduplication data size (files, bytes or blocks) impact backups or, more often, restores?
  • What amount of processing power (memory, CPU, etc.) is needed on the source and/or target to perform the deduplication process?

So when looking to reduce your backup data, don’t get duped. Make sure you find a vendor who won’t increase your costs to dedupe…

Posted by Brandon Farris

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Cloud backup best practices

Friday, March 26th, 2010

There’s an excellent tutorial in SearchDataBackup.com by W. Curtis Preston about Cloud backup best practices. It’s well worth the read as Preston offers great tips for organizations on what they should look for in Cloud backup services, provides questions to ask potential vendors and addresses the potential management and security concerns that are swirling around the Cloud.

He even concludes with “one final, important thing to consider for medium to large enterprises is whether or not the system can be eventually in-sourced.” I can’t remember ever seeing this level of advice in other “expert” tutorials. Flexibility in deployment is very important for organizations of all sizes, especially as their needs and data change and grow.

Taking this a step further, in addition to seeing if the Cloud-based system can be eventually brought on premise (and vice versa), organizations should also check if  hybrid on-premise/Cloud deployments are available and whether a dedicated managed service is offered where the provider manages backups, restores and the storage environment either on-premise at the customer and/or in the Cloud.

Here are some more Cloud backup sourcing tips courtesy our very own uber-customer Phil Mentesana, director of IT at Delphi Capital Management. He was recently highlighted in a CIO Magazine article and presented last Fall at SNW, about factors/questions organizations should consider/ask when evaluating Cloud-based backup and recovery services:

  1. Know your bandwidth requirements
  2. Is your Internet connection reliable?
  3. Do a cost benefit analysis of managing on-premise versus in the Cloud or via a hybrid approach
  4. Be sure to weigh the price vs functionality you require
  5. Determine what is the provider’s core competency

One last, and very important thing. Organizations need to consider the type and level of support they will require when looking at Cloud backup services. Is just sending emails enough or is 24/7 live support a must have? If it’s the latter, make sure to ask potential vendors who will be providing the live support and where they are located, because when it comes to Cloud backup, you really get what you pay for.

Paraphrasing a retailer’s ad slogan from my youth, “an educated Cloud backup consumer is the best customer,” so happy hunting…

Posted by John Sun

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Customers in the Cloud…And CIO Magazine

Friday, March 19th, 2010

Our customers are our best ambassadors, and we especially love it when they go above and beyond the call of duty to actively advocate the benefits of using Cloud-Connected Storage. One prime example is Phil Mentesana, director of IT at Delphi Capital Management. Last October, my colleague, Stacie Del Castello, blogged about Phil’s well-received presentation at SNW in Phoenix, Arizona to discuss the key factors Delphi Capital considered before selecting a Cloud-based solution.

If you unfortunately were unable to attend the presentation at SNW, you’re now in luck as Phil graciously spoke to CIO Magazine to tell them why Delphi Capital opted for the Cloud to protect their business’s critical data assets. It’s a great read about a great customer so don’t miss it if you want to learn more about what you need to consider before moving to the Cloud.

Posted by John Sun

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Experts Corner: Q&A with Tony Lock at Freeform Dynamics

Thursday, March 11th, 2010

Continuing our 2010 theme of speaking with European industry thought leaders for our Experts Corner Q&A series, this week we interviewed Tony Lock, programme director of Freeform Dynamics, to get his thoughts on where the industry is heading, especially regarding the Cloud and IT. At Freeform Dynamics, Tony is responsible for driving coverage in the areas of Systems Infrastructure and Management, IT Service Management, Outsourcing, and emerging hosting models such as Software as a Service and Cloud Computing. Beyond technology, Tony also considers the role of financial models in relation to IT investment. Based in Germany, Tony joined Freeform Dynamics in 2007, and has been an industry analyst since 2000, originally with Bloor Research, then later with Sageza. Before this, he gained extensive experience in the vendor arena working for companies such as Amdahl, and also has a strong IT practitioner background with companies like BP and BT.

i365: Tony, as someone working in Europe, do you see any major differences between the development and adoption of cloud technologies in Europe vs the United States? If so, do you believe that these differences will level as the technologies involved become more universally accepted? If not, what do you attribute the similarities to?

TL: When we survey IT professionals and business users around the world we do find differences between attitudes to using Cloud systems in business life. For example, many European states have significant data protection and privacy laws that make it difficult, and in some instances impossible, to move data out of country or out of the trading block. With many cloud services this can act as a significant brake on adoption. But the term “cloud” is itself now seen to be almost entirely a matter of vendor hype and our surveys show it to be consistently disliked.

But beyond the straightforward, at least theoretically, issues of external legislative constraints on data storage and processing there are many other factors that are holding back wide spread adoption of Cloud, PaaS, IaaS and some SaaS services around the globe, few of which are technical. Some of the most important are related to the long term cost of service, lack of clarity on SLAs, security and data integration with existing systems.

Finally there is the small matter of trust. Who do you trust to be able to deliver your services when you need them, at a price you are willing to pay and on whom you feel certain you can rely not to misuse, misplace or mistakenly reveal your data? And how comfortable would it be to change supplier at some point in the future if needed?

Apart from network bandwidth expense in some geographies, technology is frequently not the major challenge that Cloud services need to address. Getting the term better clarified would help as would suppliers offering better guarantees around location, security, performance / SLA and cost.

Then there is the small matter of contract law and whose will be utilised in cases of dispute. Some US vendors assume that if they have sufficiently clear get out clauses in their terms and conditions there is little a customer can do if the service does not meet their expectations. Alas for the suppliers, in many nations such get out clauses can be deemed to be unenforceable as the states or trading blocs provide certain expectations of service delivery on all suppliers who sell and deliver in their markets irrespective of the T&Cs.

As these matters are far removed from technology, I do not believe that advances in the technologies utilised by cloud systems will level the adoption rates. That comes down to getting services lined up to meet legal and frameworks and customer expectations of QoS. This will take significant effort and the investment of time, resources and money.

i365: Your recent “Inside Track” column, “Can IT Financing and Management Models Survive IT Change?” suggests that as IT technologies become more flexible (Cloud, SaaS, etc), IT budgets need to mirror this in order to most effectively be managed. Since many cloud, SaaS, and virtualized IT technologies are commonly viewed as “new” technologies, do you see this happening in many IT departments? How will slow adoption of these technologies due to inflexible budgeting affect organizational IT and business demands in general?

TL: IT organisations today have to work to fixed budgets. They do not have the luxury of a pay per use funding model by which their customers are charged back for the IT services they deliver. Therefore it follows that today it can be difficult for IT departments to utilise pay per use cloud resources except in exceptional circumstances. This is why most mainstream use of SaaS and other cloud options tends to take the form of fixed annual agreements for certain numbers of users. As this column points out I believe that IT budget models will have to change if IT is to work effectively in its ability to support flexible business requirements in the coming years. This change will not be driven by cloud alone but by a raft of more general IT funding challenges.

i365: More generally, where do you see IT in two to five years? Are there any technologies currently breaking through or on the horizon that you and your team at Freeform Dynamics believe have the potential to really take off and become IT institutions within that time frame?

TL: If I could read the future that clearly then I would probably not be here. We do expect things to get a lot more complex in the coming years and this will mean that management and automation tools will be far more important going forward, a trend that is already becoming visible today.

I see several new, or not so new, technologies becoming embedded into operational platforms by default. For example, I believe that encryption will become reasonably pervasive as concerns around security of information continues to rise and as the systems become able to make it work without disruption to the experience of users. But this in turn will throw the focus onto managing the keys required to make everything work. Everything really does come down to management.

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Shared vs Dedicated Cloud Cakes

Friday, March 5th, 2010

A few weeks back I read an article by Mike Vizard at IT Business Edge entitled, “Having Our Cloud Computing Cake,” where he noted that some IT organizations started out optimistic when looking for Cloud services but were soon “not altogether comfortable with how their data will be managed alongside other data being managed by the cloud computing provider.” Vizard writes that “in effect, what many customers want from cloud computing today is the benefits of a multi-tenant architecture when it comes to infrastructure. But they want for their applications that contain their data a single-tenant architecture that isolates their applications while still running on top of the multi-tenant infrastructure.”

Vizard concludes the article by stating “The lesson to be learned from that…is to make sure your organization knows exactly what it needs and wants from a cloud computing provider before everybody winds up wasting a huge amount of time discussing terms of a deal that should never have been put on the table in the first place.”

Very sound advice indeed. Every organization has different needs and comfort levels regarding if, how and where they store their data in the Cloud. The rise of SaaS has shown that using a shared infrastructure is safe and secure, but for some organizations, they’ll still only have peace of mind if their data is on dedicated equipment. However, for those organizations needing a dedicated infrastructure but lacking the IT resources and multiple data centers to store and manage their data securely offsite, what are their options?

Well, fortunately the Cloud is still an option. Organizations just need to look for a Cloud provider that offers both shared AND dedicated infrastructures, and then they can decide which option best meets their requirements.

At i365, our Cloud Storage and Services come in both shared and dedicated flavors. The dedicated option is called EVault Managed Services and it goes above and beyond just a dedicated server and storage at one of our SAS 70 Type II certified data centers. It includes dedicated backup management professionals, who help fine-tune the customer’s storage, troubleshoot hardware and software issues, manage backups and work to ensure fast and reliable restores. Most importantly, this helps our customers free up their valuable resources to tackle more critical initiatives, such as driving and building their organization.

So to paraphrase Vizard, organizations really can have their Cloud computing cake and eat it too…

Posted by Edgar Jimenez

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