Dayfile Maintenance

In the course of normal operation, NOS maintains three persistent log files:

• System Dayfile
• Account File
• Error Log

These files can fill up over time and require periodic maintenance to keep NOS running properly.

• On the NOS console (DSD):

  AB.

• (Optional) Dump the various system log files to the line printer.

  X.DFD.    # Dump the system dayfile (optional).
  X.AFD.    # Dump the accounting file (optional).
  X.ELD.    # Dump the error log (optional).

• Terminate the system dayfiles:

  X.MS(ENDLOG)

  Taking note of the control point's jsn (Job Sequence Number), wait for the process to finish, and when prompted to:

  ASSIGN,<jsn>,2.

  where <jsn> is the job sequence number for the ENDLOG job shown in the B display.

• Purge the dayfiles from disk:

  X.MS(PURGLOG)

  Taking note of the control point's jsn (Job Sequence Number), then affirm that you really want to do this, when prompted:

  ASSIGN,jsn,2.

• When the process has finished and you are prompted, acknowledge completion:

  ASSIGN,jsn,2.

  again to finish the process.