RDEVICE Macro 7-TRACK CONY DUA LDENS OPRDR SYSVIRT TRANS UNVCHSET VIRTUAL 2CHANSW 4CHANSW 4WCGMS .r1t'.l...L..L I, ExplanatiQ'!! 7-track head on a tape drive Conversion feature on a 7-track tape drive
Dual density on a tape drive
Operator identification card reader on a 3277 Model
2, or magnetic slot reader on a 3278, Models 2, 3,
or 4 A 3330V (DEVTYPE=3330) device that may be used by VM/370 for mounting MSS system volumes
Translation feature on a 7-track tape drive Universal character set printer
A 3330V (DEVTYPE=3330) device that may be dedicated
to a virtual machine
Two-channel switch feature for tape or DASD drive
Four-channel switch feature for tape or DASD drive
A 3800 (DEVTYPE=3800) device with four Writeable Character Generation Modules For a 3330V device, either FEATURE=VIRTUAL or FEATURE=SYSVIRT must be specified. To allow CMS to correctly verify tape mode set operations, the
correct feature code for a tape device must be specified.
If the local 3277 or 3278 display device is equipped with the
optional operator identification card reader, or magnetic reader
attachment then the virtual machine operator can gain access to the
system (log on) only if he inserts a magnetically encoded card. Use the FEATURE=OPRDR operand of the RDEVICE macro to specify a 3277 or
3278 device with a card reader. If you do not want access
authorization by a card reader, do not code FEATURE=OPRDR in the RDEVICE macro. FEATURE=OPRDR is invalid if DEVTYPE=3158. Although still allowable, it is not necessary to designate FEATURE=(2CHANSW/4CHANSW) on the RDEVICE macro. DMKCPI dynamically
determines whether or not the hardware has a two-or four-channel
switch feat ure. CLASS= (cl[ ,cl ] ••• ) DASD TAPE TERM GRAF URI URO is the device class; either the output spooling class or a special
subclass for unsupported devices. out!!!!i Spooling The spooling classes (cl,cl ••• ) list up to four output spooling
classes separated by commas. This form of the CLASS operand can
only be specified for a 1403, 1443, or 3211 printer, or 2520P, 2540P or 3525 card punch. The spooling class, cl, is one alphameric
character. If you specify more than one class, you must separate
them by commas. If no class is specified, class A is assumed for
printers and punches. The following information should be helpful when you code this
operand: For more information about spooling classes, see the VM/l1Q 146 IBM VM/370 Planning and System Generation Guide
March 3, 1980 RDEVICE Macro The class is used by the CP START command and may be changed by
this command. For a complete description of the START command,
see the VML.JIQ A class C punch should be includ ed if accounting cards are
desired. !2! Specify a device subclass only for unsupported device types. CP uses the subclass when it translates virtual CCW strings directed
to unsupported devices. This form of the CLASS operand is valid
only if the device type specified on the DEVTY-PE Operand does not
appear in the list of valid device types.
The subclasses are: DASD TAPE TERM
GRAF URr URO Direct Access Storage Devices Tap e dev ices
Terminals
Display mode terminals Unit record input devices Unit record output devices You must determine the correct subclass to specify for any device
type that does not appear in the list of valid device types under
the DEVTYPE operand. Do not code a subclass for any device type
that appears in that list. For example, a 1287 Optical Reader is
an unsupported device for VM/370. It does not appear in the list
of supported devices in Part 1 and is not listed as a device type
for the DEVTYPE operand of the RDEVICE macro. However, you can
define a 1287 and use it if you dedicate it to a virtual machine. You must decide the correct subclass. For example,
RDEvrCE ADDRESS=010,DEVTYPE=1287,CLASS=URI defines a 1287 Optical Reader at address 010. The 1287 belongs to
the unit record input (URr) subclass. li.Q1:.§§: 1. If you use this form of the CLASS operand and the unsupported
device does not function properly, try dedicating the device
to a virtual=real machine and inhibiting CCW translation (by
issuing SET NOTRANS ON) Note that a maximum of 32 sense
bytes can be contained in the RDEVBLOK created for an
unsupported device.
2. The CLASS operand is invalid if you are specifying service
record file devices. Part 2. Defining Your VM/370 System 147
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