Cylinder 0 Track 0 Record number I Description
Number of Bytes I I All Cylinders Except 0 I Track 0 Record I Description
Number of Bytes I Tr.ock 1 I Reco,d I Description I Numb .. of Bytes
Figure 3-15. RO R1 R2 R3 R4 R5 R6 RF3 I II'PL II II Kev I Labell I Allocation I I I 1 Formatl I 1 page Check- I I Forma II point II! I I Keyl 4 I Label ! Label I 1 I I , I I I , I IKevj 5 II I I I I' 8 24 4096 4 80 1024 44 96 RO R1 R2 R3 uutJutJu 8 4096 50 4096 50 4096 RO R22 R23 R24 8 4096 50 4096 50 4096 2305 Models 1 and 2 Record Layout
44 96 4096 I II Chapter 3. The Format Service Program 77
Cylinder 0 Track 0 Record number
Description
Number of Bytes All Cylinders Except 0 Track 0 Record
Description
Number of Bytes
Track 11
Record
Description
Number of Bytes RO R1 R2
D D Check-
point
8 24 4096 RO R1 R2
DDD
8 4096 4096 RO R23 R24
DDD
8 4096 4096 Figure 3-16. 3340 Record Layout
R3 I Key I Label I I I 4 80 78 IBM VM/370 Service Routines Program Logic
R4 R5 R6 I I Allocation Key IFormat Key I Format
Byte I 4 I 5
Map I Label I Labef I _1 1024 44 96 44 96
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