DC/UCF Concepts › Logging Options › Using Sequential Files

Using Sequential Files

LOG FILE1/FILE2 Parameter

To direct the system log to sequential files, code the LOG FILE1/FILE2 parameter in the system generation SYSTEM statement.

Benefits of Logging to Sequential Files

Logging to sequential files can be useful when:

• A large log file is needed
• Access to the current contents of the log is not required while the system is executing

Sequential log files can be directed to disk or print devices. Logging to sequential disk files and logging to a print device are discussed separately.

z/VM systems: Logging to sequential disk files is not advisable under z/VM because disk I/O for the log is synchronous. The DC/UCF system suspends execution while awaiting completion of a synchronous I/O operation.