Feeds

Implementing, serving, and using cloud storage

The SNIA's great introduction to cloud storage

  • alert
  • submit to reddit

Top 5 reasons to deploy VMware with Tegile

Cloud Storage

A cloud represents a “fuzzy” container for data, and the user doesn’t really care how the cloud provider implements, operates, or manages the cloud. A client, through the medium of a network, makes requests to the cloud storage to securely store and subsequently retrieve data at an agreed level of service.

Regardless of the data type managed, whether it be files, objects or even traditional SAN LUNs, cloud storage is a pool of resources that are provided in small increments with the appearance of infinite capacity. In other words, cloud storage is virtualised storage on demand and is more formally called 'Data Storage as a Service' (DaaS). DaaS is defined as “Delivery over a network of appropriately configured virtual storage and related data services, based on a request for a given service level.”

As vendors and suppliers of cloud services have delivered early implementations to users, they have tended to supply a multitude of interfaces that have been re-purposed for DaaS, such as block-based access via iSCSI; POSIX interfaces (NFS, CIFS, and WebDAV); object-based CRUD (Create, Read, Update, Delete) interfaces over HTTP; and a plethora of other proprietary interfaces for database or table access

CDMI: The Complete Picture

Clients can adapt their existing, proprietary interface, while still allowing access via CDMI or standards-based interfaces, such as POSIX, XAM and so on. They can adapt their interface by:

- Abstracting the data and storage services into data storage cloud containers

- Providing a consistent and uniform interface to gain access through CDMI

The CDMI defines the functional interface that applications can use to create, retrieve, update, and delete data elements from the cloud. As part of this interface, the client can discover the capabilities of the cloud storage offering and use this interface to manage containers and the data that is placed in them. In addition, metadata can be set on containers and their contained data elements through this interface.

SNIA cloud storage diagram

SNIA cloud storage schematic

The same interface is also used by administrative and management applications to manage containers, accounts, security access, and monitoring/billing information, even for storage that is accessible by other protocols. The capabilities of the underlying storage and data services are exposed so that clients can understand the full capabilities of the storage being used.

Choosing a cloud hosting partner with confidence

More from The Register

next story
729 teraflops, 71,000-core Super cost just US$5,500 to build
Cloud doubters, this isn't going to be your best day
Want to STUFF Facebook with blatant ADVERTISING? Fine! But you must PAY
Pony up or push off, Zuck tells social marketeers
Oi, Europe! Tell US feds to GTFO of our servers, say Microsoft and pals
By writing a really angry letter about how it's harming our cloud business, ta
SAVE ME, NASA system builder, from my DEAD WORKSTATION
Anal-retentive hardware nerd in paws-on workstation crisis
Microsoft adds video offering to Office 365. Oh NOES, you'll need Adobe Flash
Lovely presentations... but not on your Flash-hating mobe
Cray heaves out even mightier, Lustre-ous Sonexion 2000
Met Office and Los Alamos bomb boffins are apparently among its fans
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Choosing a cloud hosting partner with confidence
Download Choosing a Cloud Hosting Provider with Confidence to learn more about cloud computing - the new opportunities and new security challenges.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.