The following formula is used to obtain the minimum number of system log files to be added:
The pdlogls command cannot be used during offline operation to determine whether or not a system log file is in overwrite disabled status. The number of system log files in overwrite disabled status can be determined from messages that are output during restart processing:
Contents of the syslogfile
KFPS01800-I PRDT untF Now starting HiRDB unit untF (19924) |
In (1) above, the system log files in overwrite disabled status that were in existence after the most recent synchronization point dump generation was validated were identified. If the number of synchronization point dump guaranteed valid generations is 2, the files in overwrite disabled status that were in existence up to the point where the previous synchronization point dump generation was validated must also be identified. There are two ways to identify these files:
The files in overwrite disabled status can be identified using the KFPS02183-I message and the pdlogls command:
Contents of the syslogfile
KFPS05210-I PRDT untF HiRDB system initialization process complete(13778) |
pdlogls -d sys -s bes1 |
The files in overwrite disabled status can be identified from the KFPS02179-I message:
Contents of the syslogfile
KFPS01221-I PRDT untF logfg02 assigned as current file group of sys(bes1) |
Condition | Output of KFPS02179-I message while the previous system log file generation was allocated as the current file | |||
---|---|---|---|---|
Output | Not output | |||
Validation skips count ![]() | Validation skips count = 1 | |||
Output of KFPS02179-I message while the input start system log file was allocated as the current file at the restart | Output | (Number of files existing up to the point where the message indicating skips count = 1 was output) + 1 | 2 | 2 |
Not output | 1 |
In this example, the KFPS02179-I message was output while logfg04, which is at the system log input start point during restart, was allocated as the current file. The KFPS02179-I message was not output while its predecessor, logfg03, was allocated as the current file. Therefore, logfg03 and logfg02 are identified as the system log files in overwrite disabled status, and a value of 2 is added to the result of (1).