Cylinder 0 Track 0 Record
Description
Number of Bytes
Record
Description
Number of Bytes
All Cylinders except 0 lrE£!s.Q. Record
Description
Number of Bytes
Record
Description
Number of Bytes
Record
Description
Number of Bytes
Record
Description
Number of Bytes
Record
Description
Number of Bytes
RO R1 R2 R3 Check Key I Label
point I I I I I I I II I I I 8 24 4096 4 80
RO RF3 RF4 R4 nnnn I I I I I II I 8 4096 1624 824
RO R1 R2
nnn I I I I I I 8 4096 2472
RO R2 R3 R4
DODD
8 1624 4096 824
RO R4 R5
nnn I I I I I I 8 3272 3296
RO R5 R6 R7
DODD
8 800 4096 1648
RO R7 R8 I I I I I UUU 8 2448 4096
Figure 3-13. 2314/2319 Record Layout
R4
Allocation
Byte
Map I 1024
R5 R6 I Format i
Foem
" n
Keyl 4
Key I 5 ••••••• I Label I Label
! II ,,! I I I I 44 96 44 96 "7','dck:, C 4 ar€: tracks 4 to 9,10 to 14, and 15 to 19.
The last record is R32.
Chapter 3. The For.at Service Prograa 75

Cylinder 0 Track 0 Record Number
Description
Number of Bytes All Cx'inders Except 0 Record Number
Description
Number of Bytes Record
Description
Number of Bytes
Figure 3-14. RO R1 R2 DD Check-
point
8 24 4096 RO R1
R3
Keyl Label , I I I 4 80 R2
R4 R5
Allocation :Format
Byte Key: 4
Map I Label , 1024 44 96
R3 DDEJDEJD 8 4096 50 4096 50 4096 • • • RO R55 R56 R57
DDEJDEJD
8 4096 50 4096 50 4096 3330 Series Record Layout
76 IBM VM/370 Service Routines program Logic
R6 RF3
'Format I LJ Key, 5 I I I Label I : I 44 96 4096 I