If the system manager unit stops because of an error, users cannot connect to HiRDB servers. If the error in the system manager unit cannot be corrected immediately, you must change the specification of the PDHOST operand in the client environment definition. When the specification of the PDHOST operand is changed as described below, users can connect to the HiRDB servers.

• When the PDFESHOST operand in the client environment definition is specified
  Specify also in the PDHOST operand the name of the host (FQDN or IP address) specified in the PDFESHOST operand.
  
• When the PDFESHOST operand in the client environment definition is not specified
  Specify the PDFESHOST operand and also specify in the PDHOST operand the same host name (FQDN or IP address).
  

For details about the PDHOST and PDFESHOST operands, see the HiRDB Version 9 UAP Development Guide.