In case the message server process fails, the Veritas High Availability agent for SAP WebAS supports the message server restart through sapstart.
In case of unexpected termination, to avail the advantage of this restart technology without failing over the entire (A)SCS instance, the SAP administrator must modify the Instance profile for (A)SCS instance and set the new profile parameters.
Note: |
Restart of enqueue server process "en" is not supported by the Veritas High Availability agent for SAP WebAS. |
To restart message server, use the following syntax in the start profile:
Restart_Program_xx = local program name program arguments
For example following is the modified syntax for message server with instance name ASCS00 and SAPSID ERP
Restart_Program_00 = local $(_MS)
pf=$(DIR_PROFILE)/PI1_ASCS00_sappi1scs
By default sapstart restarts the message server without any delay. To determine under which circumstances a program must be restarted, sapstart uses a signal mask.
This mask is extendable using the parameter SignalMask_xx. This parameter consists of a list separated by commas which define the additional signals required by sapstart.
For more information on how to set signal mask and additional information on the restart process of a program through sapstart, refer to SAP Note 768727 and related notes.