On Why I Don't Like Auto-Scaling in the Cloud - O'Reilly Broadcast
http://broadcast.oreilly.com/2008/12/why-i-dont-like-cloud-auto-scaling.html

Dynamic scaling is better than auto scaling in the cloud - George Resse

Good rant about why auto-scaling is not dynamic scaling: two of the most widely cited advantages of the cloud. Not entirely convinced by the argument, though. I suspect governors can be used to manage scaling in a sensible way.

Sometimes traffic is truly unexpected. But not as often as you think. If you know you are getting coverage in some publication, marketing should have done an ROI projection on the campaign and be able to provide you with expected response rates. But you don't want it to auto-scale. Auto-scaling cannot differentiate between valid traffic and non-sense. You can. If your environment is experiencing a sudden, unexpected spike in activity, the appropriate approach is to have minimal auto-scaling with governors in place, receive a notification from your cloud infrastructure management tools, then determinate what the best way to respond is going forward. Here, the auto-scaling is simply a band-aid to enable a human to use dynamic scaling to define an appropriate, temporary capacity to support the unexpected change in demand. If you know you have a batch window from midnight to 3am, set your cloud infrastructure management tools to add capacity at 11:30 and throttle back at 3:30.

Makes good sense. I'd probably disagree on a few points if the cloud is owned/controlled by one's own organization.

"So please, take my advice, as I go into other concentrated endeavors. Fuck the Cloud. Fuck it right in the ear. Trust it like you would trust a guy pulling up in a van offering a sweet deal on electronics. Maybe you’ll make out, maybe you won’t. But he ain’t necessarily going to be there tomorrow."

Centralization is not the future.

yeahhhhh

And even

Trust it like you would trust a guy pulling up in a van offering a sweet deal on electronics.

"By the cloud, of course, I mean this idea that you have a local machine, a box running some OS, and a vital, distinct part of what you do and what you’re about or what you consider important to you is on other machines that you don’t run, don’t control, don’t buy, don’t administrate, and don’t really understand."

Go G Drive!

G Drive

Industry critics warn of danger in giving internet leader more control over users' private data

Recently, a lot of new non-relational databases have cropped up both inside and outside the cloud.

Article about where key/value databases should be used over relational databases, with some examples of dbs available.

purpose of the key/value databases. is the paradigm changing these days?

5 Cost-Efficient, Flexible Open Source Resources for Cloud Computing including Eucalyptus and Globus

Visual Map of the Cloud Computing/SaaS/PaaS Markets: September 2008 Update Four months ago, Kent Dickson and I created a visual map of the Cloud, SaaS and PaaS industry. It proved to be a popular item - we got a lot of comments and continue to see traffic to my blog page. I was long overdue to create a second version - comments needed to be integrated, and the industry has changed enough to warrant a round of updates. This blog entry contains an updated version of the map.

sistema operativo online, in the cloud.

We have just released four additional AWS public data sets, and have updated another one. In the Economics category, we have added a set of transportation databases from the US Bureau of Transportation Statistics. Data and statistics are provided for aviation, maritime, highway, transit, rail, pipeline, bike & pedestrian, and other modes of transportation, all in CSV format. I was able to locate employment data for our hometown airline and found out that they employed 9,322 full-time and 1,122 part-time employees as of the end of 2007. In the Encyclopedic category, we have added access to the DBpedia Knowledge Base, the Freebase Data Dump, and the Wikipedia Extraction, or WEX.

amazon

The goal is to make cloud computing less mysterious by helping people through the process of setting up a server on Amazon EC2.

Got an Hour? Create a Server in the Cloud

We are on the edge of two potent technological changes: Clouds and Memory Based Architectures. This evolution will rip open a chasm where new players can enter and prosper. Google is the master of disk. You can't beat them at a game they perfected. Disk based databases like SimpleDB and BigTable are complicated beasts, typical last gasp products of any aging technology before a change. The next era is the age of Memory and Cloud which will allow for new players to succeed. The tipping point is soon. Let's take a short trip down web architecture lane: # It's 1993: Yahoo runs on FreeBSD, Apache, Perl scripts and a SQL database # It's 1995: Scale-up the database. # It's 1998: LAMP # It's 1999: Stateless + Load Balanced + Database + SAN # It's 2001: In-memory data-grid. # It's 2003: Add a caching layer. # It's 2004: Add scale-out and partitioning. # It's 2005: Add asynchronous job scheduling and maybe a distributed file system. # It's 2007: Move it all into the cloud. # It's 2008: Cloud +

What makes Memory Based Architectures different from traditional architectures is that memory is the system of record. Also discussed Jim Starkey NimbusDB

"AppScale is an open-source implementation of the Google AppEngine (GAE) cloud computing interface. AppScale enables execution of GAE applications on virtualized cluster systems. In particular, AppScale enables users to execute GAE applications using their own clusters with greater scalability and reliability than the GAE SDK provides. Moreover, AppScale executes automatically and transparently over cloud infrastructures such as the Amazon Web Services (AWS) Elastic Compute Cloud (EC2) and Eucalyptus, the open-source implementation of the AWS interfaces."

Open source google app engine implementation, supports Xen, extending to GAE, EC2

A BSD-licensed implementation of Google App Engine. Roll your own cloud computing platform.

Outlines some themes of cloud computing, challenges to openness, and some principles for meeting them.

There's a growing trend to provide some pretty awesome IT services over the internet. Seems to me that's the way it will mostly be in a decade's time - or less.

Amazon Elastic MapReduce is a web service that enables businesses, researchers, data analysts, and developers to easily and cost-effectively process vast amounts of data. It utilizes a hosted Hadoop framework running on the web-scale infrastructure of Amazon Elastic Compute Cloud (Amazon EC2) and Amazon Simple Storage Service (Amazon S3).

Who needs infrastructure? Keep your data somewhere else. Process your data somewhere else. You can now run your small data business out of your garage. Just photoshop a nice office for the investors.

Experiences deploying a large-scale infrastructure in Amazon EC2 At OpenX we recently completed a large-scale deployment of one of our server farms to Amazon EC2. Here are some lessons learned from that experience. Expect failures; what's more, embrace them Fully automate your infrastructure deployments Design your infrastructure so that it scales horizontally Establish clear measurable goals Be prepared to quickly identify and eliminate bottlenecks As you carefully watch various indicators of your systems' health, be prepared to.... Play wack-a-mole for a while, until things get stable

Write your Google App Engine applications in Groovy

Google just announced that their Google App Engine cloud hosting platform now supports other languages than Python: namely Java and Groovy!

Equipped with an easy file manager and a photo application, icloud lets Marcus organize photos and share slideshows with his friends and relatives. His favorite icloud application is Photos for organizing and sharing photos with his family and friends.

Online bilgisayar

Use icloud for storing files online Store once. Open from any computer. icloud keeps your files and photos safe, yet always right next to you.

storage space for pictures etc

Synchroniser sa librairie iTunes sur le web. Makes it easy to keep iTunes music libraries in sync, securely backed up and streamable from anywhere

"Drag and drop iTunes sync! Just drop your tracks into the Echodio playlist to synchronize tracks, tags and ratings across all your iTunes libraries."

According to Gartner, a typical IT department spends 80% of their budget keeping the lights on, and this hampers their ability to drive change and growth in their business.

Google's definition of the "Cloud"

Cloud computing refers to the utilization of shared, elastic resources and processing power accessed via the Internet. In some ways, it hails the reversion to the golden age of time-sharing but with significant improvements to the distribution philosophies underlying the delivery infrastructure. So, analogously, we now have the shared wonders of Hyde Park, where everyone and anyone can chill on the bench, throw some Frisbee, instead of having to financially pool money to buy a private park to shoot rabbits. What is a cloud? Developers today can avoid scalability and availability worries in case their site turns into the next big thing by developing upon the cloud. Traditionally, a typical web application stack will look like that on the left below: image1 Cloud-based development involves in some sense, the outsourcing, of various parts of the application out of the server and into the cloud. So instead of storing images, videos and other objects in the file system, they are store

Database systems are notorious for being hard to use. It is even more difficult to integrate data from multiple sources and collaborate on large data sets with people outside your organization. Without an easy way to offer all the collaborators access to the same server, data sets get copied, emailed and ftp'd--resulting in multiple versions that get out of sync very quickly. Today we're introducing Google Fusion Tables on Labs, an experimental system for data management in the cloud. It draws on the expertise of folks within Google Research who have been studying collaboration, data integration, and user requirements from a variety of domains. Fusion Tables is not a traditional database system focusing on complicated SQL queries and transaction processing. Instead, the focus is on fusing data management and collaboration: merging multiple data sources, discussion of the data, querying, visualization, and Web publishing. We plan to iteratively add new features to the systems as we

Get dropbox setup on all my computers

Into the Cloud: Our 5 Favorite Online Storage Services - http://www.readwriteweb.com/archives/free_online_storage_services.php

Being able to access your files from anywhere and from any computer is one of the great conveniences of the always-on Internet. Online file storage has been around for quite a while, but the latest generation of services are so cheap and easy to use that there is almost no reason not to back some of your files up into the cloud. Most online storage providers also give you the ability to then share these files with your friends and colleagues. We selected the services on this list because they have a good track record of keeping your data safe while providing you easy access to your files from wherever you are.

And this is what we wanted a year ago. At least.

define

In a privacy error that underscores some of the biggest problems surrounding cloud-based services, Google has sent a notice to a number of users of its Document and Spreadsheets products stating that it may have inadvertently shared some of their documents with contacts who were never granted access to them.

Google products are NOT FREE. The Worlds’ Biggest Data Hoover makes you pay with your privacy. Enjoy the ride in the “cloud”. reply Paul - March 7th, 2009 at 1:31 am PST I agree with this balanced opinion. reply Smart Babes Are Sexy Blog - March 7th, 2009 at 7:49 am PST Free or not, some things are just not acceptable. Yes, air is “free”, but that does not allow people to pollute it with without abandon. Facebook is “free”, but that does not allow it to take away all ownership rights of all the content I would post there. As one comic book character once said, “With great power comes grea

Google is Evil?

ElasticF

Free Web Resources Everyday - WebResourcesDepot

The term "cloud computing" is being bandied about a lot these days, mainly in the context of the "future of the web." But cloud computing's potential doesn't begin and end with the personal computer's transformation into a thin client

The term "cloud computing" is being bandied about a lot these days, mainly in the context of the "future of the web." But cloud computing's potential doesn't begin and end with the personal computer's transformation into a thin client - the mobile platform is going to be heavily impacted by this technology as well. At least that's the analysis being put forth by ABI Research. Their recent report, Mobile Cloud Computing, theorizes that the cloud will soon become a disruptive force in the mobile world, eventually becoming the dominant way in which mobile applications operate.

mobile cloud computing to take off because....mobile already has

The first mobile apps powered by the cloud will likely be business-focused mobile productivity applications where collaboration, data sharing, multitasking, and scheduling are key factors. For consumers, though, navigation and mapping applications will be the most obvious examples of the trend. Plus, there are some specialty applications today which already function as mobile cloud apps - for example, Schlage offers a remote keyless entry system which lets you mobilely control your home from a distance. You can let someone into your house, manage your lights, your thermostat, your camera system, etc. There are also a few applications in the iPhone app store that let you remotely manage your PC and your DVR, too.

SpringSource Cloud Foundry

Spring等で作成したJavaアプリを、クラウド上で動作させるツール

The first self-service, pay-as-you-go, public cloud deployment platform for full-feature Java web aplications that unifies the entire build, run, and manage application lifecycle for Java. Cloud Foundry offers complete application lifecycle management for running Spring, Grails, and Java web applications.

SpringSource Cloud Foundry is the first self-service, pay-as-you-go, public cloud deployment platform for full-feature Java web aplications that unifies the entire build, run, and manage application lifecycle for Java. Cloud Foundry offers complete application lifecycle management for running Spring, Grails, and Java web applications by integrating the world's most popular Java web application technologies into an enterprise Java cloud platform that takes full advantage of the power of elastic cloud computing.

Amazon Virtual Private Cloud (Amazon VPC) lets you create your own logically isolated set of Amazon EC2 instances and connect it to your existing network using an IPsec VPN connection. This new offering lets you take advantage of the low cost and flexibility of AWS while leveraging the investment you have already made in your IT infrastructure.

@igrigorik: "cool, amazon launches "virtual private cloud" service @ http://bit.ly/w2z6d" (from http://twitter.com/igrigorik/status/3556113445)

There's something you won't see mentioned by too many advocates of cloud computing – the main attraction is making money from you

_"...the main attraction of the cloud to investors and entrepreneurs is the idea of making money from you, on a recurring, perpetual basis, for something you currently get for a flat rate or for free without having to give up the money or privacy..."_ - no kidding, "Sherlock":people/Cory_Doctorow? Took you long enough to figure out...

"There's something you won't see mentioned by too many advocates of cloud computing – the main attraction is making money from you"

Cory Doctorow: There's something you won't see mentioned by too many advocates of cloud computing – the main attraction is making money from you

Where is da Blank Applciation?

Dion Hinchcliffe on leveraging the convergence of IT and the next generation of the Web.

These days in the halls of IT departments around the world there is a growing realization that the next wave of outsourcing, things like cloud computing and crowdsourcing, are going to require responses that will forever change the trajectory of their current relationship with the business, or finally cause them to be relegated as a primarily administrative, keep-the-lights-on function.

Every day more users move their computing lives from the desktop to the cloud and rely on hosted web applications to store and access email, photos, and documents. But this new frontier involves serious risks that aren't obvious to most.

In an era of ubiquitous broadband, smartphones, and users who manage multiple computers and devices, it just makes sense to move your email, photos, documents, calendar, notes, finances, and contacts to awesome web applications like Gmail, Evernote, Flickr, Google Docs, Mint, etc. But transferring your personal data to hosted web applications has its potential pitfalls, risks that get lost in all the hype around cloud-centric new products like Google's new Chrome OS or the iPhone.

Windows 7 release -- Google vs. Apple vs. Microsoft in the future of OSes.

The launch of Windows 7 marks the end of an era in computing—and the beginning of an epic battle between Microsoft, Google, Apple and others

Briefing from The Economist (17 October 2009)

Amazon Relational Database Service (Amazon RDS) is a web service that makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while managing time-consuming database administration tasks, freeing you up to focus on your applications and business. Amazon RDS gives you access to the full capabilities of a familiar MySQL database. This means the code, applications, and tools you already use today with your existing MySQL databases work seamlessly with Amazon RDS. Amazon RDS automatically patches the database software and backs up your database, storing the backups for a user-defined retention period. You also benefit from the flexibility of being able to scale the compute resources or storage capacity associated with your relational database instance via a single API call. As with all Amazon Web Services, there are no up-front investments required, and you pay only for the resources you use.

Amazon Relational Database Service (Amazon RDS) is a web service that makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while managing time-consuming database administration tasks, freeing you up to focus on your applications and business.MySQL

Amazon Relational Database Service (Amazon RDS) is a web service that makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while managing time-consuming database administration tasks, freeing you up to focus on your applications and business. Amazon RDS gives you access to the full capabilities of a familiar MySQL database.

[digg=http://digg.com/tech_news/11_Top_Open_source_Resources_for_Cloud_Computing] Open-source software has been on the rise at many businesses during the extended economic downturn, and one of the ...

A 3 minute introduction to the basics of cloud computing

Commoncraft video on cloud computing

Microsoft doesn't think 2010 Word users want a collaboration option in Web version. http://bit.ly/jS7oI [from http://twitter.com/dwicksspu/statuses/2650174101]

Review of @microsoft (client) Office 2010 | http://bit.ly/jS7oI (via @techcrunch) **good one [from http://twitter.com/MikevHoenselaar/statuses/2627550417]

Amazon CloudFront

"libcloud is a standard client library for many popular cloud providers, written in python."

"libcloud is a standard client library for many popular cloud providers, written in python "

libcloud is a standard client library for many popular cloud providers, written in python

Cloud computing means that the applications are running somewhere in the “cloud” (whether an internal network or the Internet). We, as users, don’t know and don’t care. Done right, cloud computing allows developers to develop, deploy and run applications that can easily grow in capacity (scalability), work rapidly (performance), and never – or at least rarely – fail (reliability), all without any concern as to the nature and location of the underlying infrastructure.

Cloud computing providersEveryone can build a website, but not not everyone can build a good and popular website. If you can pull it off, you can enjoy benefits like building something people are using, recognition and – sometimes – money. It can be a good business, even your full time job. But bad things can happen, and you should be prepared for it. One of those things (well, actually this is not a bad thing!) is to have spikes in traffic… maybe as a result of getting on Digg.com, Reddit.com, Google News, or another major media outlet frontpage… or getting reviewed by Techcrunch or another major technology blog.

"Thus, computer systems will have greater opportunity to learn from the collective behavior of billions of humans. They will get smarter, gleaning relationships between objects, nuances, intentions, meanings, and other deep conceptual information. Today's Google search uses an early form of this approach, but in the future many more systems will be able to benefit from it."

Computer systems will have greater opportunity to learn from the collective behavior of billions of humans. They will get smarter, gleaning relationships between objects, nuances, intentions, meanings, and other deep conceptual information. Today's Google search uses an early form of this approach, but in the future many more systems will be able to benefit from it.

Volume 14, Number 5 - 4 May 2009; Contents: Introduction; What is the cloud? Who uses the cloud? Where is the cloud? What rules govern the cloud? Conclusion: Clouds without borders?

FirstMonday - Peer Reviewed Journal

Article from First Monday 14 (5) (4 May 2009)

Geography, Economics, Environment, and Jurisdiction in Cloud Computing.

read this! Cloud computing

import a lib in your python and run code automagically in parallel on a remote cluster. pricing is time used x processes plus data xfer

good read

Great article on the present and future trends of computing technologies and horizons.

The web designers' guide to cloud hosting All you need to know about developing and hosting in the cloud

Cloud computing is quietly taking over the world and changing the way we use our computers forever. Whether you're storing your photo collection on Flickr or logging on to Gmail, everyone's now using the cloud, even if they don't realise it. But how does it work and how can we as web designers and developers make it work for us?

Cloud computing is quietly taking over the world and changing the way we use our computers forever. Whether you're storing your photo collection on Flickr or logging on to Gmail, everyone's now using the cloud, even if they don't realise it. But how does it work and how can we as web designers and developers make it work for us? Cloud computing runs on virtual servers. Rather than being a single physical box, a virtual server runs as part of a physical box. This type of virtualisation is nothing new and has long been a cost-effective entry-level solution. Virtual machines on the cloud run on clusters of servers. Again, this is nothing new: most medium-to-large server set-ups involve clustering.

Windows/Mac/Linux: If you're interested in the idea of cloud computing and remote access to your files but a bit paranoid about putting your data on some third party server, Tonido is a great compromise. Tonido brings cloud computing home by using your computer as the storage server and host for the applications. Once you've installed Tonido, the only function the Tonido servers themselves perform is keeping track of your IP to make remote logins easier for you. Tonido has a juke box for remote media streaming, a photo organizer, a blog-like personal journal that has support for web clippings and Twitter integration, easy file sharing with Webshare folder management, and a workspace with calendar, notes, and task lists.

is this supposed to be a joke - http://aws.amazon.com/importexport/

How the Amazon Web Services deal with importing and exporting large volumes of data to/from the cloud.

Import large data sets via snail mail into Amazon S3 storage.

The second time through the Appistry team tossed the database, at least for its duties as a processing platform, instead keeping the transaction -- in fact ALL transactions -- in memory at the same time. This made the work flow into read-process-write (eventually). The database became more of an archive and suddenly a dozen commodity PCs could do the work of one Z-Series mainframe, saving a lot of power and money along the way.

Few startups have a chance to revolutionize an industry. But if entrepreneur Steve Perlman’s OnLive lives up to its goals, the company will disrupt the entire video game industry — to the delight of both game publishers and gamers.

A guy has developed a data compression technology and an accompanying online game service that allows game computation to be done in distant servers, rather than on game consoles or high-end computers.

OnLive kan de wereld van de game industrie op zijn kop zetten Motivatie: een toekomstbeeld van een journalist, altijd leuk om zo inspiratie te krijgen waar het allemaal heen zou kunnen gaan

“This is video gaming on demand, where we deliver the games as a service, not something on a disk or in hardware,” Perlman said. “Hardware is no longer the defining factor of the game experience.”

"Mike McGarvey, chief operating officer of OnLive, said the new technology 'breaks the console cycle where a gamer has to buy a new machine every few years.' If this happens, the obvious losers are Microsoft, Sony and Nintendo." The death of platform-dependent games is, for my money, absolutely essential to their development as a viable cultural form.

game console using cloud computing

Good discussion of the advantages and trade-offs

Google Drive, or Gdrive as it is better known, has to be the most anticipated Google product so far. When it arrives, Gdrive will likely cause a major paradigm shift in how we use computers and bring Google one step closer to dethroning Windows on your desktop.

Apple has promised similar desktop, mobile and web file syncing between Macs, PCs and iPhones via a MobileMe cloud service, but the feature was delayed due to ongoing MobileMe difficulties - even though Apple built it into its desktop. Called "Back to my Mac," this OS X Leopard feature pairs with MobileMe online storage to let you search, access and edit files stored on a remote Mac. Besides such offerings from industry heavy-weighs, there are similar free or low-priced online storage services from others that let you do more or less the same.

Do we really want to store private data with a third party, even if it is Google?

ust as bad as using a proprietary program. Do your own computing on your own computer with your copy of a freedom-respecting program. If you use a proprietary program or somebody else's web server, you're defenseless. You're putty in the hands of whoever developed that software." The negative characteristics of cloud computing that Stallman id

"The negative characteristics of cloud computing that Stallman identifies are very real, but the solution that he prescribes seems grossly myopic and counterintuitive. ... Stallman correctly recognizes those problems, but his belief that the problems are intractable is simply wrong. The open source software movement has found productive ways to address the same kind of problems on the desktop, and I'm confident that reasonable solutions can be found to bring the same level of freedom to the cloud. The challenges posed by new computing paradigms will require the open source software community to evolve and adapt, not collectively stick its head in the sand. "

Great article on the benefits and drawbacks of cloud computing.

Salesforce - incredible efficiency! and other metrics

all of Salesforce.com runs on only about 1,000 servers. And that is mirrored, so it is really only 500

A few months ago I talked about our plans to create and offer a service for content delivery. That service is called Amazon CloudFront and it is ready now!Like all of our other services, CloudFront was designed with ease of...

A few months ago I talked about our plans to create and offer a service for content delivery. That service is called Amazon CloudFront and it is ready now!

content delivery network

A few months ago I talked about our plans to create and offer a service for content delivery. That service is called Amazon CloudFront and it is ready now! Like all of our other services, CloudFront was designed with ease of use in mind from the very beginning. There are no minimum usage commitments, no monthly fees, and no need to even talk to us.

To that end, we are excited to release our new internal learning platform, CloudCourse under an open source license. Built entirely on App Engine, CloudCourse allows anyone to create and track learning activities. CloudCourse also offers calendaring, waitlist management and approval features.

Google taking a crack at an LMS? We developed CloudCourse to provide a course scheduling system fully integrated with Google services

new internal learning platform, CloudCourse under an open source license. Built entirely on App Engine, CloudCourse allows anyone to create and track learning activities. CloudCourse also offers calendaring, waitlist management and approval features.

sites para hacer bck online

RT @DrJeffersnBoggs: 4 Sites To Get 10GB Free Online Storage http://bit.ly/90TwRt RT @flemcy @Techzader @arkarthick @meerantj @pramitjnathan

The goal of OpenStack is to allow any organization to create and offer cloud computing capabilities using open source software running on standard hardware. OpenStack Compute is software for automatically creating and managing large groups of virtual private servers. OpenStack Storage is software for creating redundant, scalable object storage using clusters of commodity servers to store terabytes or even petabytes of data.

via: http://news.ycombinator.com/item?id=1527572 What the software does: The goal of OpenStack is to allow any organization to create and offer cloud computing capabilities using open source software running on standard hardware. OpenStack Compute is software for automatically creating and managing large groups of virtual private servers. OpenStack Storage is software for creating redundant, scalable object storage using clusters of commodity servers to store terabytes or even petabytes of data.

The OpenStack Open Source Cloud Mission: to produce the ubiquitous Open Source Cloud Computing platform that will meet the needs of public and private cloud providers regardless of size, by being simple to implement and massively scalable.

(Apache v2 license!) "The goal of OpenStack is to allow any organization to create and offer cloud computing capabilities using open source software running on standard hardware. OpenStack Compute is software for automatically creating and managing large groups of virtual private servers. OpenStack Storage is software for creating redundant, scalable object storage using clusters of commodity servers to store terabytes or even petabytes of data."

Innovative, open source cloud computing software for building reliable cloud infrastructure.

Rackspace's cloud software, allows customers to avoid lockin

The goal of OpenStack is to allow any organization to create and offer cloud computing capabilities using open source software running on standard hardware. OpenStack Compute is software for automatically creating and managing large groups of virtual private servers. OpenStack Storage is software for creating redundant, scalable object storage using clusters of commodity servers to store terabytes or even petabytes of data.

Open source hosting and storage software. database ?