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Using CA AppLogic › Grid Administration Guide › Quotas › How to Use Quotas › Set Parent-Child Quota Relationships

Set Parent-Child Quota Relationships

You can define parent-child relationships to help manage quotas. Quotas that are assigned to a parent group are automatically assigned to all related child groups.

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can_own

When you create a group, by default, it cannot be the owner of an object. To create or modify an existing group to be able to be the owner of an object, use the can_own attribute with the corresponding group management command. This is important because groups can be owners of objects that are subject to quotas. Setting the can_own attribute on a group can be used to prevent users from avoiding their quotas by changing the owner of an object to themselves or a group of which they are member (either directly or through another group they are member of) that also has the can_own attribute set.

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Using the sample groups created in the previous sections, the following procedure describes how to organize the WarnGroup and ISVAdvancedDevGroup groups as children of the DevelopmentPackages parent to maintain quota entries and users.

Follow these steps:

  1. Open the grid shell from the GUI.
  2. Use the quota info command to view the existing quota entries: 
    quota info WarnGroup
quota info ISVAdvancedDevGroup
  3. Use the group create and quota modify commands to create a parent-child structure. In this example, the bandwidth quota is set to 4 Gbps. 
    group create DevelopmentPackages
quota modify WarnGroup bw=4G parent=DevelopmentPackages
quota modify ISVAdvancedDevGroup bw=4G parent=DevelopmentPackages
  4. Use the quota list command to review your changes: 
    quota list

    The quota list appears:

    Principal                Warn / Burst    CPU     MEM         BW         DISK       Description
-------------------------------------------------------------------------------------------
DevelopmentPackages       - / -          -       -           -          -
  \_ ISVAdvancedDevGroup  - / 50%        4.00    4.00 GB     4.00 Gbps  500.00 GB  Burst Quota
  \_ WarnGroup          75% / -          4.00    4.00 GB     4.00 Gbps  500.00 GB  Warn Quota

Note: When a quota has a parent, all quotas in the quota hierarchy are enforced.