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Enabling Multi-Instance Installations

You can install multiple instances of the Commvault software on a computer.

Notes:

  • On a Windows computer, you can have a maximum of 20 instances.
  • On a UNIX computer, you can have a maximum of 999 instances.

Before You Begin

Procedure

Use one of the following methods to enable multi-instance installations on a computer.

Preferred Method: Using the CommCell Console (Remote Installation)

During a remote installation, on the Enter Additional Install Options page of the installation wizard, select the Install new Instance (if required) check box to install a new instance.

For instructions on remote installations, see Installing Commvault Remotely Using the CommCell Console.

Important:

  • Remote installations are not supported for server packages, such as the CommServe, Web Server, and Workflow Engine.
  • Subsequent installations on the new instance are not supported from the CommCell Console. You must run the installation package to install the software on the instance you want.

Alternative Method: Using the Installation Package (Local Installation)

  • On Windows computers perform the following steps:
    1. Before you run the installation package, create the bAllowMultiInstances registry key to enable the multi-instancing feature on a Windows computer by performing the following:
      1. Open the Windows Registry Editor and go to the following directory:

        HKEY_LOCAL_MACHINE\SOFTWARE\

      2. Right-click SOFTWARE, and then click New > Key. Name the new key GalaxyInstallerFlags.
      3. Right-click GalaxyInstallerFlags, and then click New > DWORD. Name the new value bAllowMultiInstances.
      4. Double-click bAllowMultiInstances, set the Value data to 1, and then click OK.
      5. Close the Registry Editor.
    2. Install a new instance.

      During a local installation, on the Install Instance Selection page of the installation wizard, select Create a new instance.

      For instructions on local installations, see Installing Commvault Locally on Windows Computers Using the Installation Package.

  • On UNIX computers, during a local installation, make sure to select the following options:
    • On the Install Task dialog, select Install packages on this machine.
    • On the Instance Page dialog, select Create new instance.

    For instructions on local installations, see Installing Commvault Locally on UNIX, Linux, and Macintosh Computers Using the Installation Package.

Note: Do not use unattended installations to create new instances or on a computer that has multiple instances.

What To Do Next

Caution: Overlapping contents can result in data loss.

For the following agents, ensure that there is no overlapping subclient content across instances before you start to perform backups:

  • Exchange Database
  • Informix
  • Oracle
  • SharePoint Server
  • Sybase

Last modified: 8/14/2019 9:02:56 PM