If you want to retain all file generations of the SYSLOG-FGG, you must create the SYSLOG-FGG as follows:
/CREATE-FILE-GROUP - / GROUP-NAME = fgg-name - / ,GENERATION-PARAMETER = *GENERATION-PARAMETER( - / MAXIMUM = n - / ,OVERFLOW-OPTION = *KEEP-GENERATION )
In this case the base is set to 0, i.e. it lies outside the valid range between the first and last file generation. The BS2000 then retains all generations of the FGG, regardless of the value specified in the MAXIMUM parameter (maximum number of generations).
CAUTION!
If, on the other hand, you set the base of the FGG within the valid range, i.e. between the first and last generation, all generations outside the valid range (generation numbers not within LAST-GEN - MAXIMUM and LAST-GEN) are lost (without warning).
If the base lies within the valid range of the FGG and if you nonetheless want to keep as many generations as possible, you must select a sufficiently high value for n (preferably 9999). In this case, you can also specify REUSE-VOLUME or CYCLIC-REPLACE for the OVERFLOW-OPTION operand.