Generated from C.65.00 /SYSADMIN/PUB/MYCICAT last modified on Sun Aug 29 15:08:37 2004
Removes a device from normal system use. This command does not apply to the system console or to disk drives. (CM)
DOWN ldev
ldev The logical device number of the device being taken offline.
When you issue the DOWN command for a device that is in use, the request will be satisfied when the process currently accessing it releases it. This command may be issued from a session, job, program, or in BREAK. Pressing [Break] has no effect on this command. It may be used only from the console unless distributed to users with the ALLOW or ASSOCIATE commands. This command does not apply to disks, or to the system console. Any attempt to take the console down will produce the following error message DOWN NOT PERFORMED ON CONSOLE DEVICE (CIERR 3150)
When any device is powered down without the use of the DOWN command, subsequent access to that device can result in indefinite waiting, erroneous transfers, or other incorrect operation. Often these failures will occur with no indication to the system operator or to the user. For this reason, it is very important that every device that is not fully operational (especially those that are powered down) be downed with the DOWN command. A device that will be inoperable for more than a few hours can be temporarily removed from the I/O configuration at system startup.
To take logical device number 7 offline, enter DOWN 7 To take logical device number 10 (an input spooled, job accepting magnetic tape) offline, enter DOWN 10 STOPSPOOL 10 1116/31/SP#10/STOPPED 1116/31/LDEV#10 NOT READY
Commands: SHOWDEV, UP Back to Main Index