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Nimbus is an open-source toolkit that, once installed on a cluster, provides an infrastructure as a service cloud to its client via WSRF-based or Amazon EC2 WSDL web service APIs. The mission of the software is to evolve the infrastructure with emphasis on the needs of science, but many non-scientific use cases are supported as well.

Nimbus supports the Xen hypervisor or KVM and virtual machine schedulers PBS and SGE. It allows deployment of self-configured virtual clusters via contextualization. It is configurable with respect to scheduling, networking leases, and usage accounting.

Nimbus clients can deploy, pause, restart and shutdown VMs.

 Nimbus 2.10.1

Free to download


Apache License version 2

Kate Keahey, Tim Freeman and others


System Requirements
Kernel-based Virtual Machine
Java 1.5+
Xen 3.x
Python 2.4+
ebtables filtering tool
DHCP server

Documentation, FAQ, Mailing Lists, GitHub, Twitter

Selected Reviews:
University of Notre Dame

Features include:

  • Storage cloud implementation called Cumulus that has been tightly integrated with the other central services
  • Cumulus is compatible with the Amazon Web Services S3 REST API
  • Intuitive Cloud client - the workspace cloud client allows authorized clients to access many Workspace Service features in a user friendly way. cloud-client is an easy way to use both a storage cloud and IaaS
  • Provides an implementation of Amazon's Elastic Compute Cloud (EC2) that allows you to use clients developed for the real EC2 system against Nimbus based clouds
  • WSRF based: protocol implementation
  • S3 REST API clients can also be used for managing VM storage with the Nimbus system
  • Alows clients to create auto-configuring clusters
  • Resource management options including schedulers such as PBS
  • LANTorrent - a file distribution protocol which act as a means to multi-cast virtual machine images to many backend nodes
  • Flexible group management
  • Per-client usage tracking
  • Per-user Storage Quota
  • Flexible request authentication and authorization
  • Simple user management
  • Configuration management
  • One-click clusters
  • Workspace client
  • VM network configuration
  • Local resource management plugin
  • Xen and KVM plugins
  • Site scheduler integration
  • VM resource usage enforcement (resource allocation)

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Last Updated Sunday, July 05 2015 @ 03:58 PM EDT

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