Enterprise Administration > File Vaulting and Replication > Replication > Understanding Replication > Administering a Local Cache Vault > Replication Process > Property Controls
  
Property Controls
To run multiple active sessions of replication concurrently, use the wt.fv.master.Replication.NumOfQueues property. This property defines the number of queues that are used to simultaneously execute replication sessions. The default setting is 1.
Use caution when increasing the maximum number of concurrent sessions, as each session is resource-intensive and uses the network bandwidth at the master site for content transfers.
As more replication sessions are scheduled, they are queued in parallel queues so that at any time, the number of active sessions is equal to or less than the number of queues.
* 
The queues can be configured to run on a specific method server. This feature provides for another dimension to the scaling of replication activity.