Configuring Windows Systems

It is suggested that you increase the default Desktop Application Heap to ensure that enough heap is available for the components that are deployed on your Windows servers.

About this task

Modify the desktop heap size. To do this action, follow these steps:

Procedure

  1. Click Start, type regedit in the Start Search box, and then click regedit.exe in the Programs list.
    Note: If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
  2. Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems
  3. Right-click the Windows entry, and then click Modify.
  4. In the Value data section of the Edit String dialog box, locate the SharedSection entry, and then update the three values if necessary. The suggested values are 1024, 2048, and 4096. If any of these three values is less than the suggested, increase it to the suggested value. If any of the values are already larger than the suggested value, you can leave that value as is.
    Note: If you use the nonAdmin mode, or use the Windows system account that is not administrator, perform the following steps:
    • Ensure to add the account to system Administrator group because the deployment scripts will use Job Manager provided by WebSphere for remote deployment. Related limitations can be accessed at Requirements for using Remote Execution and Access.
    • The User Account Control setting must be changed to Never notify as stated in step a and b.
      • For Windows 2012, do the following steps:
        1. Edit the registry by going to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system. Edit EnableLUA and set the DWORD to 0.
        2. Restart the system
      • For Windows 2008, do the following steps:
        1. Log on Windows Server 2008 as administrator.
        2. Select Start > Control Panel > User Accounts > System and Security > Action Center > Change User Account Control Settings > Never notify, and then click OK.
        3. Restart the system.