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4. Run the SYSGEN utility, IO subsystem:
:SYSGEN
SYSGEN>IO
For a SCSI tape library (DLT) device, add:
• The path and device for autochanger:
IO>PATH PATH=56/52.0 ID=PSEUDO
IO>ADEV LDEV=30 PATH=56/52.0.0 ID=PICKER
• Paths and devices for tapes:
IO>APATH PATH=56/52.2 ID=PSEUDO
IO>ADEV LDEV=31 PATH=56/52.2.0 ID=DLT8000
MODE=AUTOREPLY
IO>APATH PATH=56/52.3 ID=PSEUDO
IO>ADEV LDEV=32 PATH=56/52.3.0 ID=DLT8000
MODE=AUTOREPLY
The MAPPER utility lists the path number (for example, PATH=56/52.0) and the
device ID (use the first word from Component Name, for example ID=DLT8000).
The LDEV number is any free number from 1-255. You can check already used
numbers by listing all devices with SYSGEN, IO subsystem, or the showdev
command:
:SYSGEN
SYSGEN>IO
IO>LDEV
:SHOWDEV
The path address for autochanger is usually the path address for tape +1.
5. For path number (PATH=56/52.0-PATH=56/52.0.0) from MAPPER utility,
for ID use the first word from Component Name (ID=DLT8000), for autochanger
use PICKER (ID=PICKER) and for LDEV numbers use any free number from
1-255.
NOTE:
For SCSI devices, use PSEUDO as the device identifier.
MPE/iX system user guide28