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Manual Chapter: Working with Folders
Manual Chapter
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Folder attributes for redundancy

Folders have two specific redundancy attributes that enable granular synchronization and failover of BIG-IP® system data within a device group. These two attributes are a device group name and a traffic group name.

Device group name

This attribute determines the scope of the synchronization, that is, the specific devices to which the system synchronizes the contents of the associated folder. When you create a Sync-Failover device group on a BIG-IP device, the system assigns that device group name as an attribute of folder root. Any other folders that you subsequently create on a device group member then inherit that same device group name, by default.

The result is that when you enable config sync for the local device, the contents of the root folder and any sub-folders are synchronized across the members of the specified device group.

If you want to synchronize a specific sub folder across only a subset of device group members, you can create a second, smaller Sync-Only device group in which the local device is also a member, and then change the sub folder's device group attribute to the new Sync-Only device group name. All objects within that sub folder are then synchronized to the Sync-Only device group, while objects outside of that sub folder are still synchronized to the members of the larger Sync-Failover device group.

Note: The device group assigned to a folder must contain the local BIG-IP device. Also, you cannot remove the local BIG-IP device from the Sync-Failover device group assigned to a folder.

Traffic group name

This attribute determines the scope of a failover action, that is, the specific configuration objects that will fail over if the device becomes unavailable. If you enabled failover on a device (as part of running the Setup utility or upgrading from a previous BIG-IP version), the device contains the default traffic group named traffic-group-1. The system assigns this traffic group name by default as an attribute of folder root. Any other folders that you subsequently create on a device group member inherit that same traffic group name, by default. The result is that when the local device is a member of a Sync-Failover device group, all failover objects within the rootfolder and its hierarchy fail over based on the definition of the specified traffic group.

You can assign a different traffic group to a specific sub folder. For example, you can create an iApps™ application in a sub folder and change the inherited traffic group value of traffic-group-1 to a traffic group that you create, such as traffic-group-2. You can then manually cause traffic-group-2 to fail over to another device so that the iApp application runs on a separate device from traffic-group-1.

Viewing redundancy attributes for the root folder

You can view the device group and traffic group attributes assigned to the root folder. All eligible configuration objects in the root folder hierarchy synchronize to the named device group, and all failover objects in the hierarchy fail over with the named traffic group.
Note: All folders and sub-folders in the root folder hierarchy inherit these attribute values, by default.
  1. On the Main tab, click System > Platform . The Platform screen opens.
  2. For the Redundant Device Configuration setting, view the device group and the traffic group attributes.

Configuring the traffic group attribute for the root folder

If you have two or more traffic groups defined on the BIG-IP® system, you can configure the traffic group attribute assigned to the root folder. By default, this value is traffic-group-1.
Note: All folders and sub folders in the root folder hierarchy inherit this attribute value, by default.
  1. On the Main tab, click System > Platform . The Platform screen opens.
  2. If the system includes two or more traffic groups, then for the Default traffic group setting, select a traffic group from the list.
  3. Click Update.
By default, all failover objects in the rootfolder hierarchy fail over with the named traffic group, when failover occurs.

Configuring redundancy attributes for a specific folder

Because a high-level folder exists on the BIG-IP® system for each administrative partition, you can use a partition to set up granular, folder-based synchronization and failover of BIG-IP configuration data in a device group. For example, instead of synchronizing all configuration data in folder root to the same device group, the BIG-IP system can synchronize objects within a specific folder, such as policy objects, to a different device group. You do this by viewing the settings of the partition that corresponds to the specific folder to which you want to assign a different device group.
  1. On the Main tab, expand System and click Users. The Users List screen opens.
  2. On the menu bar, click Partition List.
  3. In the Name column, click the partition name that corresponds to the relevant high-level folder.
  4. For the Device Group setting, clear the check box labeled Inherit device group from root folder and from the list, select the name of a device group.
  5. For the Traffic Group setting, clear the check box labeled Inherit traffic group from root folder and from the list, select the name of a traffic group.
  6. Click Update.
The contents of the folder corresponding to the specified partition now will synchronize to the specified device group and will fail over with the specified traffic group.
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