Suspend Accelerator Job Dispatch

You can suspend job scheduling without stopping the Accelerator vovserver. 
 % nc [-q qname] cmd vovsh -x 'vtk_server_config scheduler suspend'

This will suspend the dispatching of jobs.

To resume, use:
 % nc cmd vovsh -x 'vtk_server_config scheduler resume'

(in fact, any word other than 'suspend' will resume the scheduler)