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Vulnerabilities Data Center: Why the modern data centers fault?

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Year 2008 started with a gloomy prediction Subodh Bapat a vice-president of Team Eco-computing at Sun Microsystems, which he said: "You? will see a massive failure in a year. "He continued by saying:" We will see a breakdown of the data center of this scale, "in reference worm that had a 5% decrease of Unix machines worldwide 1988. ¹

This time, it is not cited safety violations as the first cause, but rather the failure caused by the enormous computing power required to run applications today.

While certainly an extreme position, the past year has seen a wave of failures in the data center that challenges the way unique and reliable data centers are for the provision of mission critical applications.

Vulnerabilities from the most common disasters such as Natural and infrastructure failure (power outage in the data center, burst pipes, construction damage fiber lines), a clerical error, storage or databases not common software and have been regularly disrupt business and come with a high price.

Recent News in support of the fact that, even with good planning, resources and design, some of the most sophisticated facilities may still face a catastrophic failure.

Last summer, the state of art-365 Data Center in San Francisco â € "built with more than $ 125 million – was offline for hours because of electrical grid failure by Pacific Gas & Electric, which has an important part of San Francisco in the dark. Subsequently, the emergency generators during installation, failure and had to be manually started. ²

"When research data centers, new facilities often boast two N levels of redundancy, "said Roger Smith, Vice President of Operations at Ceryx Inc." However, as these facilities filling and age, which often becomes an N, or in parts is no redundancy at all. "

According to Sun Microsystems executives, the life of a typical data center is only 10 to 12 years and many data centers – built in early dot-com era â € "must now be rebuilt.

"As the person responsible for the availability that I balance that applications are considered critical by top-management and clearly communicate the costs and investments required to provide high availability, "says Roger Smith. "When you present the facts, it becomes clear to everyone that in a clearinghouse of data could not provide levels of redundancy required and even a level of co-location we would need redundancy.

In many cases, no emergency plan would avoid the problems that afflict the different data centers. On 14 July this year, the data center a peer in downtown Vancouver â € "one of the largest installations in Canada â € "has been offline for almost a whole day. A fire has caused massive power outages in the metro all downtown Vancouver. While emergency generators in Peer 1 has started without problems, the cooling system water based does that firefighters € "in their attempt to extinguish the fire – depleted water pressure necessary to keep the system functioning cooling. This has caused emergency generators to overheating and switching to UPS has been limited to a battery of short life.i ³

In a similar case this summer, the planet, a leading provider of lodging in Houston, has experienced a large explosion in their data center, taking more than 9,000 customers servers offline for several days. backup generators worked perfectly, but once the fire department does not install regain power until deemed safe. Sometimes, the servers have been physically migrated to a new facility.

In the aftermath of this disaster the world has been applauded for its response to the crisis; allocate all resources do their best to solve the problem and proactively communicating status reports and issuing ALS credits.Â

Google App company whose customers experienced many failures, Aug. 6, 11 and 15 of this year, had a more responsive, promising to build a table edge communication and issue a credit to cover all customers, regardless of whether they were affected by the failure.

The true question remains, what is the cost of data center failure and downtime that results for organizations? Is covered by appropriations ALS? Most SLA credits reflect the cost of services rendered and almost never provide business losses.

Then Conference Continuity Management Insights in 2006 Agility Recovery Solutions has said that 78% of businesses that suffer a disaster without an emergency plan is a business in 2 years. And 90% of companies unable to resume their operations within five days of a disaster are businesses within 1 year.Â

Obviously some applications are deemed more critical and have more visibility than other. Large companies feel the impact immediately when their ERP, CRM (SaleForce.com is still plagued by a failure of the first time more than two years ago caused by a failure to Database Oracle Cluster?), Business Intelligence or mail systems are no longer available.

But With the proliferation of mobile devices and access everywhere, "e-mail stands out clearly that the request of Prime Minister reviews today. Systems such as Lotus Notes ® and Microsoft ® Exchange hold a register of business life existence, storing all the activities, processes and the thought of an organization and its employees. Not surprisingly, enterprises are now required to keep records of activity e-mail compliance purposes.

Although the vast majority of businesses rely on e-mail every day to send contracts, proposals, quotations and the majority of the correspondence, most email systems have not yet reached the point of reliability of telephone service offers (99.999% or Of 5.2 minutes downtime per year)

According to Osterman Research, most North American businesses experience more than one e-mail outage every month – and several have indicated they could lose more than $ 100,000 as a result of one large email outage. ¹

Osterman also found that the average business experiences nearly seven hours of email downtime each year and that breakdowns can bring many workers to a quasi-stagnation, which are on average 25% less productive when email downtime.

"Forget the fact, my billing rate impact if I can access my email system, "says an associate at a leading North American law which prefers to keep the stock. "My business image tarnishes significantly when I work on a multi-million dollar face highly confidential and I have to send a series of documents to use my Hotmail account because my email system is down. Someone gets fired for it. "

Michael Osterman, continues by saying, "organizations do not meet their objectives in terms of availability of the messaging system, and adds that system of the average e-mail experiences about 70 minutes of downtime during a typical month, which corresponds to 99.84% of availability. To do so, it raises the question: "Is this enough?" Â Â ¹ ¹

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and messaging "> Ceryx Inc.., a provider of Hosted Microsoft Exchange with data center facilities in Canada and United States, doesn? think not. They were the first in the industry to offer a real 100% SLA based on their data center architecture and design of multiple software. Customers? Data is replicated in time real and resides in both data centers â € "more than 500 miles away â €" so that even in case of failure catastrophic, the primary system does not allow over with almost no impact on the end user.

"We are working on the assumption that even the best data center and experience failure because of uncontrollable circumstances, "says Dr. David Penny, CIO at Ceryx. "We focus our R & D on keeping the application highly available, and rely on our replication technology to mitigate the vulnerabilities that exist on the level of the data center. Then we make investment and operating capital needed to run every day. "

For the past 4 years Penny and her team have worked with corporate email systems like Lotus Notes and Microsoft Exchange, the Development technology to provide high availability. Since 2004, they were able to provide a geo-replicated Microsoft ® Exchange 2003 services to medium and large businesses see the cost and performance advantages of the solution Ceryx.

More recently, Dr Penny and her team have worked with Geographic Clustering in Server 2008 and native Microsoft Exchange 2007 CCR (Cluster Continuous Replication) technology. What makes clustering is a WAN. traditional groups, based on the same RAID system to continue functioning properly, are sensitive to logical corruption and some physical corruption can propagate across a range RAID cause a complete failure. Geo-Clustering removes the dependency of redundant servers on the same set of discs, eliminating a very common point of failure.

"Even with WAN replication we need to ensure that corruption itself ISN? T replied, " said Dr. Penny. For that, they use log-port with the application rather than delay the replication block level to avoid replicating corruptions caused by defects of application. By monitoring performance on the primary system closely, they can stop being bad changes involved in the secondary system.

Beyond the physical vulnerability of a single data center is protected Ceryx against a number of other vulnerabilities anyone using a single data center is exposed. "During the negotiation of our contract, our supplier knows how easy it is for us to move facilities, "said Roger Smith. "The data are already copied and we don? T need to migrate physical servers. The migration to a new facility can occur without any impact to our customers. We can not be held hostage to a bad contract or increases radical pricing or maintenance of a poor performance. "

Ceryx also great flexibility where a road is affected and must be a backbone down or congested, Ceryx with front-end servers operating two plants, has the flexibility to route traffic through separate installation and bypass the congestion could hit potential operators lacking a single data center.

Though there are a number of solutions on the market which provide continuity through an intermediate mail system in case of unavailability, Ceryx different system in that it does not require the user to change settings, even when the system switches to e-mail the secondary school. In addition, things like e-mail history, sent items and all calendar entries are intact.

In this regard, the solution is not Ceryx a solution of continuity, but rather a highly available solution that provides layers dismissal, as compared with the software until the establishment level.

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Hosted Archiving Solutions â € "a good plan for any company faced with regulatory and legal compliance – also provides a layer of insurance and access e-mail records, if the main facility suffer complete failure. However, these solutions do not provide business continuity and availability.

In addition, if the primary supplier of messaging experience failure due to corruption of data, archived data can be and corrupt. Large databases, even at the mailbox, lead to corruption and the current trend of vendors selling Hosted Exchange accounts e-mail with the benefits of mass storage is the introduction of a higher probability of data corruption and subsequent failure. Good archiving strategy can be used to keep the size of mailboxes to manage and then reduce the risk of corruption.

Thus, while extremely valuable in today's world of critical e-mail archiving to an external hosting facility should not be confused with multi-strategy data center. Instead of archiving is a good backup plan and will not provide protection businesses today inevitable necessity against the vulnerabilities that exist with a single data center strategy.

These vulnerabilities are generally covered in the fine print of an installation? SLA s, under the term "force majeure", a term often translated as an "act of God? or translation literal French, "Superior Force" and included a clause to excuse the interruption in services caused by extraordinary circumstances beyond the willingness of the provider. The circumstances which – as shown last year – are increasingly common.

Michael Osterman concludes In his presentation on the importance of continuity e-mail, the only solution to the inevitable problems that affect the delivery of essential services to the mission is a geo-replicated, multi-data center solution like that offered by Ceryx.

Notes:

 ¹ CNET News: http://news.cnet.com/8301-10784_3-9828570-7.html

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 ² Data Center Knowledge http://www.datacenterknowledge.com/archives/2007/07/24/generator-failures-caused-365-main-outage

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 ³ Data Center Knowledge http://www.datacenterknowledge.com/archives/2008/07/15/vancouver-power-outage-kos-plenty-of-fish/

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4Â Data Center Knowledge http://www.datacenterknowledge.com/archives/2008/06/01/explosion-at-the-planet-causes-major-outage/

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5Â networks of centers: http://www.centernetworks.com/the-planet-data-center-fire

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-6 CIO WebBlog: http://www.cio-weblog.com/50226711/google_manning_up_for_august_outages.php

7 London Chamber of Commerce Study, 2006

Eight The importance of messaging in business: A survey of continuous application messaging, Applicationcontinuity.org, 2006

9 CIO WebBlog: http://www.cio-weblog.com/50226711/salesforcecom_outage_root_cause_oracle.php

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-10 BNET Business Network: http://findarticles.com/p/articles/mi_m4PRN/is_2008_July_8/ai_n27893385

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  ¹ ¹ Appcon 2007: Application Continuity Conference, â € ~ The importance of Continuityâ Email € ™ – (webinar available http://www.teneros.com/infocenter/)

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