Shutting Down and Restarting the System

Use this procedure when:

vA recovery action procedure instructs you to either Shutdown or Restart the system

vYou are changing the Con®gure Printer Printer Mode setting from dual simplex to duplex

vYou want to do a general shutdown and power off the system.

You must use the Shutdown procedure to do the following:

vClose all active procedures

vDisable all enabled host system attachments

vSafely prepare the system so that the AFCCU may be powered-off.

Note: You should always do this procedure before you switch off power to the AFCCU, regardless of whether a recovery action procedure instructed you to switch power off to the system or you are doing it on your own.

Shutting Down the System

Note: With a duplex con®guration in duplex mode or with a simplex printer, this procedure shuts down the complete system (both printers in a duplex con®guration). In dual simplex mode, this procedure shuts down only the target printer. The other printer remains active and usable. If you are shutting down the last active dual simplex printer, the complete system is shutdown.

Note that once you have shutdown a dual simplex printer using this procedure, the only way to get it back to active use is to shutdown the other dual simplex printer also.

Chapter 6. Operator Responsibilities 61

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IBM 3000 manual Shutting Down and Restarting the System, Shutting Down the System