The tasks below enable you to modify settings for multiple-server StoreFront deployments. To manage a multiple-server deployment, use only one server at a time to make changes to the configuration of the server group. Ensure that the Citrix StoreFront management console is not running on any of the other servers in the deployment. Any configuration changes you make must be propagated to the other servers in the group to ensure a consistent configuration across the deployment.
You must configure servers comprising a StoreFront server group identically in terms of both StoreFront installation location and IIS website settings, such as physical path and site IDs.
To improve performance when some of the servers providing resources become unavailable, StoreFront temporarily bypasses servers that fail to respond. While a server is being bypassed, StoreFront ignores that server and does not use it to access resources. Use these parameters to specify the duration of the bypass behavior:
- All failed bypass duration specifies a reduced duration in minutes that StoreFront uses instead of Bypass duration if all servers for a particular Delivery Controller are being bypassed. The default is 0 minutes.
- Bypass duration specifies the time in minutes that StoreFront bypasses an individual server after a failed attempt to contact that server. The default bypass duration is 60 minutes.
Considerations when specifying All failed bypass duration
Setting a larger All failed bypass duration reduces the impact of unavailability of a particular Delivery Controller; however, it has the negative affect that resources from this Delivery Controller are unavailable to users for the specified duration after a temporary network outage or server unavailability. Consider the use of larger All failed bypass durationvalues when many Delivery Controllers have been configured for a store, particularly for nonbusiness-critical Delivery Controllers.
Setting a smaller All failed bypass duration increases the availability of resources served by that Delivery Controller but increases the possibility of client-side timeouts if many Delivery Controllers are configured for a store and several of them become unavailable. It is worth keeping the default 0-minute value when not many farms are configured and for business-critical Delivery Controllers.
To change the bypass parameters for a store
Important: In multiple-server deployments, use only one server at a time to make changes to the configuration of the server group. Ensure that the Citrix StoreFront management console is not running on any of the other servers in the deployment. Once complete, propagate your configuration changes to the server group so the other servers in the deployment are updated.
- On the Windows Start screen or Apps screen, locate and click the Citrix StoreFront tile.
- Select the Stores node in the left pane of the Citrix StoreFront management console and click Manage Delivery Controllers in the Actions pane.
- Select a controller, click Edit, and then click Settings on the Edit Delivery Controller screen.
- On the All failed bypass duration row, click in the second column and enter a time, in minutes, for which a delivery controller is considered offline after all its servers fail to respond.
- On the Bypass duration row, click in the second column and enter a time, in minutes, for which a single server is considered offline after it fails to respond.