Offline database support
When offline database support is enabled on the farm, a snapshot of the database is created and initialized at server startup. The snapshot is continually updated by the Stream Process. If the database becomes unavailable, the Stream Process uses the snapshot to get information about the Provisioning Server and the target devices available to the server. This process allows Provisioning Servers and target devices to remain operational. However, when the database is offline, Citrix Provisioning management functions and the Console become unavailable.
The snapshot for offline database support is in memory.
When the database connection becomes available, the Stream Process synchronizes any Provisioning Server or target device status changes made to the snapshot, back to the database.
The following features, options, and processes remain unavailable when the database connection is lost, even if the Offline Database Support option is enabled:
- AutoAdd target devices
- vDisk updates
- vDisk creation
- Active Directory password changes
- Stream Process startup
- Image Update service
- Management functions: PowerShell, MCLI, SoapServer, and the Console
Enabling offline database Support
- In the Console tree, right-click on the Farm, then select Properties. The Farm Properties dialog appears.
- On the Options tab, select the Offline Database Support check box.
- Restart Stream services.