Skip to main content

SLAs in the Cloud: Disaster-Proofing the Cloud

Good read this:

It is virtually impossible for a cloud vendor to offer a strong SLA for two reasons. First, the cost advantage of the cloud is based on shared resources, although IBM (nyse: IBM - news - people ) is now pushing the idea of creating and running private clouds for its large customers. But even if a cloud is private, the fact that many applications are running on a shared infrastructure increases the risk of catastrophe.

The second reason is that offering a really strong SLA, one that covers the lost revenue from an outage, is just too risky. It means putting the vendor's entire enterprise at risk, essentially selling a form of insurance on the cheap. That's why in the cloud and elsewhere, SLAs will never be that strong.

Without SLAs to provide much comfort, the real remedy to managing catastrophic outages is redundancy. If your cloud infrastructure fails for a critical system, you must be able to bring up a redundant infrastructure that performs the same functions in order to keep your business running. In this respect, the cloud is coming to its own rescue in the form of multi-cloud offerings.

RightScale has recently announced multi-cloud support for its system, which helps rapidly deploy and scale applications on cloud infrastructure. Multi-cloud support means that the configuration you use to define a one-cloud computing infrastructure, say Amazon Web Services, will not only set up a working system there, but also on Eucalyptus, Flexiscale and GoGrid as well. This provides a way out of a catastrophic failure of one of the cloud vendors. If you replicate the data stored in one cloud to another on a continuous basis, if one cloud fails, you can rapidly recreate the same infrastructure on the second cloud.

This is much better than an SLA in terms of reducing risk. As more cloud vendors expand their offerings, more and more of the cloud will become redundant. For example, Mosso, RackSpace's cloud computing division, just purchased JungleDisk, a consumer- and work group-oriented cloud storage service based on Amazon's S3. Mosso now intends to transform JungleDisk into a multi-cloud offering.


Source

Comments

Popular posts from this blog

Get Vyatta Virtual Appliance, now VMware certified!

We all know Vyatta, don't we?

Vyatta, the leader in Linux-based networking, today announced that its open-source networking software has received VMware Virtual Appliance Certification, thereby providing customers with a solution that has been optimized for a production-ready VMware environment. The company also announced it has joined the VMware Technology Alliance Partner (TAP) Program. As a member of TAP, Vyatta will offer its solutions via the TAP program website. With the Vyatta virtual appliance for VMware environments, organizations can now include Vyatta’s router, firewall and VPN functions as part of their virtualized infrastructure.

Vyatta combines enterprise-class routing and security capabilities into an integrated, reliable and commercially supported software solution, delivering twice the performance of proprietary network solutions at half the price. Running Vyatta software as virtual appliances gives customers many more options for scaling their data centers and cons…

3PAR adds native LDAP support to simplify administration

3PAR®, the leading global provider of utility storage, announced today native support for lightweight directory access protocol (LDAP). Support for LDAP enables centralized user authentication and authorization using a standard protocol for managing access to IT resources. With 3PAR’s support for LDAP, customers are able to now integrate 3PAR Utility Storage--a simple, cost-efficient, and massively scalable storage platform—with standard, open enterprise directory services. The result is simplified security administration with centralized access control and identity management.

“3PAR Utility Storage already provides us with a reliable, shared, and easy-to-use consolidated storage platform,” said Burzin Engineer, Vice President of Infrastructure Services at Shopzilla. "Now, with 3PAR support for LDAP, managing security commonly--across all our resources, including storage--is also simple and efficient.”

Press Release

DeepLearningTrucker Part 1