Occupying An Mtc Device When X2000 Communication Is Disrupted - Fujitsu Siemens Computers SX series User Manual

Global X2000 functions

9.4.5 Occupying an MTC device when X2000 communication is disrupted

In normal circumstances an MTC device can only be occupied by a BS2000 system for use
when the BS2000 systems in the Switched nodes list can communicate with each other on
the X2000 level.
The EVENT command described below (see also
be used to occupy an MTC device even when communication with one or more of the
BS2000 systems is disrupted. It should be used only if you are certain that none of the
inaccessible BS2000 systems can access the MTC device.
The EVENT command is as follows:
sx.bs2mtcfetch -f tape-MN
-f
tape-MN
This command is especially useful when you need to remove a failed BS2000 system from
the Switched nodes list (see
on page
i
i
U41272-J-Z385-3-76
Force option. When the command has been executed, the MTC device for
the current BS2000 system can be occupied even though some of the
systems in the Switched nodes list might not be accessible.
The option becomes unavailable after a period of 3 to 6 minutes.
Mnemonic name of the BS2000 device.
section "Removing a BS2000 system after initial configuration"
237).
To include a system which was not accessible when the bs2mtcfetch -f
command was issued in use of the MTC device again, proceed as follows:
1. Terminate use of the MTC device.
2. Reconnect the system to the MTC device.
3. Perform a DETACH and ATTACH for the device on the system.
4. Resume using the MTC device.
The command
bs2mtcfetch -f
command UNLOCK-DEVICE which is not otherwise available for X2000 MTC devices
(which in BS2000 is terminated with the message text COMMAND REJECT).
Magnetic tape cartridge devices
section "MTC devices" on page
can also be used as a replacement for the BS2000
193) can
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