Recommendations

Specify the REUSE option when defining the COMMDS data set to help avoid space problems (SMS reason code 6068) during subsequent COMMDS updates or IMPORT/EXPORT functions.
Use SHAREOPTIONS(3,3) when allocating an ACDS or COMMDS. This allows full authority to read from and write to the ACDS or COMMDS from any system. The ACDS and COMMDS must be accessed from all systems in the complex simultaneously. If SMS detects a lower value for SHAREOPTIONS when the CDS is activated, SMS attempts to alter the value to SHAREOPTIONS(3,3).