STORE and TurboSTORE/iX Products Manual (B5151-90003)

60 Chapter4
Preparing the System
Sending Warning Messages
Sending Warning Messages
About 10 minutes before you plan to begin the backup, use the WARN command to send a
message to all users asking them to log off the system.
Unlike the TELL command, the WARN command interrupts users working in QUIET mode
so that you can be sure they know about the impending backup. Enter the command below,
substituting the time you intend to begin the backup for hh:mm.
:WARN @S; BACKUP WILL BEGIN AT hh:mm. PLEASE LOG OFF
Now that everyone has been warned, find out who is still using the system. Enter:
:SHOWJOB JOB=@S
The system responds by listing all sessions. Since you have already told users about the
backup once, and warned them again, most users should have ended their sessions.
Periodically use the SHOWJOB command to see who is still logged on to the system.
NOTE
For an online backup, send these messages to users. However, you could
change the text of the message to let users know that they can log on after a
certain amount of time has passed. The amount of time users have to remain
logged off the system depends on how much data is being stored. It can range
anywhere from 1 to 30 minutes.
For a 7x24 true-online backup, you can send a warning message to users
notifying them that the true-online backup is about to begin. However, you do
not have to tell them to log off.