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Specifications and Additional Information
A-66 Sun Confidential: Internal Only 96257
Revision A
■ Virtual Tape Drive Mapping and Host Addressing
A VSM5-VTSS can be configured with up to 256 virtual tape drives (VTDs). During VTSS
installation, all 256 available VTDs are mapped as shown in Table A-3 below. Mapping of
all available VTDs is required by VTSS microcode, and applies whether the VTDs are ulti-
mately defined or undefined.
Table A-3. Mapping Parameters for 256 Virtual Tape Drives (VTDs)
Sequential Device
Numbers
Parameters
Sequential Device
Numbers
Parameters
0 - 15
VCU0
DEV 0-255
FDID 00-0F
CUADD=0
128 -143
VCU8
DEV 0-255
FDID 80-8F
CUADD=8
16 - 31
VCU1
DEV 0-255
FDID 10-1F
CUADD=1
144 -159
VCU9
DEV 0-255
FDID 90-9F
CUADD=9
32 - 47
VCU2
DEV 0-255
FDID 20-2F
CUADD=2
160 -175
VCUA
DEV 0-255
FDID A0-AF
CUADD=A
48 - 63
VCU3
DEV 0-255
FDID 30-3F
CUADD=3
176 -191
VCUB
DEV 0-255
FDID B0-BF
CUADD=B
64 -79
VCU4
DEV 0-255
FDID 40-4F
CUADD=4
192 -207
VCUC
DEV 0-255
FDID C0-CF
CUADD=C
80 -95
VCU5
DEV 0-255
FDID 50-5F
CUADD=5
208 -223
VCUD
DEV 0-255
FDID D0-DF
CUADD=D
96 -111
VCU6
DEV 0-255
FDID 60-6F
CUADD=6
224 -239
VCUE
DEV 0-255
FDID E0-EF
CUADD=E
112 -127
VCU7
DEV 0-255
FDID 70-7F
CUADD=7
240 -255
VCUF
DEV 0-255
FDID F0-FF
CUADD=F