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CloudStack was originally developed by Cloud.com, formerly known as VMOps.[4]
VMOps was founded by Sheng Liang, Shannon Williams, Alex Huang, Will Chan, and Chiradeep Vittal in 2008.[5][6]The company raised a total of $17.6M in venture funding[7] fromRedpoint Ventures, Nexus Ventures andIndex Ventures (Redpoint and Nexus led the initial Series A funding round). The company changed its name from VMOps to Cloud.com on May 4, 2010, when it emerged fromstealth mode by announcing its product.[8][4][9] Cloud.com was based inCupertino,California.
In May 2010, Cloud.com released most of CloudStack asfree software under theGNU General Public License, version 3 (GPLv3).[10] They kept about 5% proprietary.[11] Cloud.com and Citrix both supportedOpenStack, another Apache-licensed cloud computing program, at its announcement in July 2010.[12][13][14]
In October 2010, Cloud.com announced a partnership withMicrosoft to develop the code to provide integration and support of Windows Server 2008 R2 Hyper-V to the OpenStack project.[15]
Citrix Systems purchased Cloud.com on July 12, 2011, for approximately $200 million.[16][17][18] In August 2011, Citrix released the remaining code under theApache Software License with further development governed by theApache Foundation.[11] In February 2012, Citrix released CloudStack 3.0. Among other features, this added support forSwift, OpenStack's S3-like object storage solution.[19]
In April 2012, Citrix donated CloudStack to theApache Software Foundation (ASF), where it was accepted into the Apache Incubator; Citrix changed the license to theApache License version 2. As part of this change, Citrix also ceased their involvement inOpenStack.[20] On November 6, 2012, CloudStack 4.0.0-incubating was announced,[21] the first stable release after joining ASF. On March 20, 2013, CloudStack graduated from Apache Incubator and became aTop-Level Project (TLP) of ASF.[22] The first stable (maintenance) release after graduation is CloudStack 4.0.2.[23]
The minimum production installation consists of one machine running the CloudStack Management Server and another machine to act as the cloud infrastructure (in this case, a very simple infrastructure consisting of one host running hypervisor software). In its smallest deployment, a single machine can act as both the Management Server and the hypervisor host (using the KVM hypervisor).[35]
Multiple management servers can be configured for redundancy and load balancing, all pointing to a commonMySQL database.
In July 2012 it was reported thatDatapipe launched the largest international public cloud to be built on CloudStack, which included 6 data centers in the US, Britain, and Asia.[36]
