IMS_Logging_AutoArchive
The logging facility is currently inactive. This is not a good state to be in since you will loose the ability to recover your data in case of errors. Check with the IMS administrator to make sure that the logging facility is properly defined.
The formula is:
DASD_Logging.Auto_Archive EQ Inactive
IMS_LOGGING_WriteAhead
The Write Ahead capability enables the system to write data quicker by insuring that the resources needed for writing the data are available. If this facility is not active, then some writes will take longer to perform. Verify that write-ahead is enabled for the IMS system.
The formula is:
DASD_Logging.Write_Ahead_Status EQ Inactive
IMS_OLDS_I/O_Errors_Critical
The number of Online Logging datasets that have had I/O errors has exceeded the limit. This is an indication that you may be having problems with the DASD devices where the datasets reside. Determine what types of errors are being reported for the devices and move the datasets to devices that are more stable.
The formula is:
DASD_Logging.OLDS_with_I/O_Errors GE 1
IMS_OLDS_One_Active
The count of Online Logging Datasets is one. This means that there will be no place to write the logging information once this dataset fills up. Checkt the system configuration to ensure that multiple online datasets are defined and that they are available to the IMS system.
The formula is:
DASD_Logging.OLDS_Active EQ 1