Apache Server Requirement

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The machines that will run the Management Server and MySQL database must meet the following requirements. The same machines can also be used to provide primary and secondary storage, such as via localdisk or NFS. The Management Server may be placed on a virtual machine.

  • Operating system:
  • Preferred: CentOS/RHEL 6.3+ or Ubuntu 12.04(.1)
  • 64-bit x86 CPU (more cores results in better performance)
  • 4 GB of memory
  • 250 GB of local disk (more results in better capability; 500 GB recommended)
  • At least 1 NIC
  • Statically allocated IP address
  • Fully qualified domain name as returned by the hostname command
  • The host is where the cloud services run in the form of guest virtual machines. Each host is one machine that meets the following requirements:

  • Must support HVM (Intel-VT or AMD-V enabled).
  • Hardware virtualization support required
  • 36 GB of local disk
  • Latest hotfixes applied to hypervisor software
  • When you deploy CloudStack, the hypervisor host must not have any VMs already running
  • All hosts within a cluster must be homogeneous. The CPUs must be of the same type, count, and feature flags.
  • Hosts have additional requirements depending on the hypervisor. See the requirements listed at the top of the Installation section for your chosen hypervisor:


    Be sure you fulfill the additional hypervisor requirements and installation steps provided in this Guide. Hypervisor hosts must be properly prepared to work with CloudStack. For example, the requirements for XenServer are listed under Citrix XenServer Installation.

    CloudStack is only distributed from source from the official mirrors. However, members of the CloudStack community may build convenience binaries so that users can install Apache CloudStack without needing to build from source.

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