Feeds

Implementing, serving, and using cloud storage

The SNIA's great introduction to cloud storage

  • alert
  • submit to reddit

Beginner's guide to SSL certificates

The Design of the Cloud Data Management Interface

Designed to enable interoperable cloud storage and data management, the CDMI specification is aggressively addressing a total cloud storage solution. This solution helps users avoid the chaos of proprietary advances and partial-solution APIs that would erode the integrity of the cloud model.

Easy to implement, CDMI integrates and is interoperable with various types of client applications and is designed to be compatible with current public cloud storage offerings. CDMI offers standard approaches to data portability, compliance, and security. It also offers the ability to connect one cloud provider to another, enabling compatibility among cloud vendors.

Providing both a data path to the cloud service and a management path for the cloud data, CDMI is the functional interface that applications use to create, retrieve, update, and delete data elements in the cloud. As part of this interface, the client will be able to discover the capabilities of the cloud storage offering and use this interface to manage containers and the data that is placed in them. The semantics of CDMI are straightforward; simple containers and data objects are tagged with metadata—some of which are metadata that describe the data requirements of the object or container. The protocol for accessing the data and metadata is RESTful HTTP, first outlined by Roy Fielding.

How CDMI Will Roll Out

Since CDMI can be used as both a data path and a management path, there are several ways to deploy an implementation of CDMI for a private, public, or hybrid cloud. First of all, CDMI can be deployed side by side with existing proprietary interfaces. This deployment allows existing applications to move over to the standard interface when they want to take advantage of the features.

The side-by-side deployment allows the same data to be accessed via either interface, and no movement of data is required. As the cloud provider adds additional data services and capabilities to their service, the application can use the CDMI interface to ensure that the existing data requirements are being met using those new services. If the cloud provider implements the CDMI accounting, users can use that function to administer the security and to programmatically access their bill.

CDMI has many capabilities and not all will be implemented by every cloud offering. CDMI has capability resources that let a client application programmatically find out which capabilities are actually implemented before trying to use them. This feature also allows new cloud offerings to use CDMI as the initial interface for their service, expanding the implementation of CDMI as the offering increases capabilities. CDMI is also extensible to accommodate services and features that are not yet standardised, which means that those functions will not require separate, proprietary interfaces.

Conclusion

There are many advantages to using public, private, and hybrid clouds as part of an organization’s long-term storage strategy. In private/hybrid models, internal IT departments have more control of their data (vs. public clouds) without needing to actively manage it, resulting in significantly lower costs than traditional storage. Public clouds offer the availability of storage capacity on a pay-as-you-go basis, combined with scalability and ease of use and can offer much needed cost savings.

CDMI, by enabling interoperable cloud storage and data management, provides a new paradigm of managing all cloud environments, while maintaining the simplicity that makes the cloud approach attractive. With its total cloud storage solution, CDMI is helping users avoid concerns around proprietary cloud advances and partial-solution APIs, while helping to maintain the integrity of the cloud model.

Bootnote

This article is based on a series of SNIA tutorials on cloud storage technologies. To view all of the tutorials on Data Protection and Management, visit the SNIA Europe website.

It was written by Alex McDonald, SNIA Europe UK Country committee member. He works for NetApp.

For more information on this topic, visit: www.snia.org and www.snia-europe.org.

About the SNIA

The Storage Networking Industry Association (SNIA) is a not-for-profit global organisation, made up of some 400 member companies spanning virtually the entire storage industry. SNIA's mission is to lead the storage industry worldwide in developing and promoting standards, technologies, and educational services to empower organisations in the management of information. To this end, the SNIA is uniquely committed to delivering standards, education, and services that will propel open storage networking solutions into the broader market.

About SNIA Europe


The Storage Networking Industry Association (SNIA) Europe is dedicated to educating the market on the evolution and application of storage infrastructure solutions for the data centre by providing thought leadership and industry education focussed on storage technologies and business value. For more information visit: www.snia-europe.org.

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
IT crisis looming: 'What if AWS goes pop, runs out of cash?'
Public IaaS... something's gotta give - and it may be AWS
Linux? Bah! Red Hat has its eye on the CLOUD – and it wants to own it
CEO says it will be 'undisputed leader' in enterprise cloud tech
BT claims almost-gigabit connections over COPPER WIRE
Just need to bring the fibre box within 19m ...
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Ello? ello? ello?: Facebook challenger in DDoS KNOCKOUT
Gets back up again after half an hour though
Hey, what's a STORAGE company doing working on Internet-of-Cars?
Boo - it's not a terabyte car, it's just predictive maintenance and that
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.