19
SCSI SWITCH (FOR AS/400
®
)
Auto Configuration ON
Change the configuration of the tape unit. These changes will assist
in the allocate/deallocate of the tape unit.
1. Vary off tape unit, controller and tape device descriptions.
2. Issue the following commands:
CHGCTLTAP CTLD(TAPCTL01) ONLINE(*YES)
CHGDEVTAP DEVD(TAP01) ONLINE(*NO)
(TAPCTL01), TAP01
are used as examples.
• De-allocated state. The controller will be in a varied on status
and the tape device will be in a varied off status.
• Allocated state. The controller will be in an active status and
the tape device will be in a varied on status.
Software
The effective use of the SCSI Switch (for AS/400
®
) depends on changes
to the configurations and existing programs on the AS/400(s) that are
connected to the tape unit. The following items are only recommendations;
review them before implementing.
1. Change existing save programs and routines to issue the following
commands before and after using the tape unit:
ALLOCATE:
VRYCFG
CFGOBJ
(TAP01) +
TAPE UNIT
CFGTYPE
(*DEV)
STATUS
(*0N)
DE-ALLOCATE:
VRYCFG
CFG0BJ
(TAP01) +
TAPE UNIT
CFGTYPE
(*DEV)
STATUS
(*0FF)