User Guide

3-2 Ampex 1308911-02
Model No.
Running Head
DD-2 Format Types DD-2 Tape Format
3.4 DD-2 Format Types
A DD-2 tape supports three basic format types, each having distinct uses and advantages:
• Initialized (or non-preformatted).
• Partially formatted (or partially preformatted).
Figure 3-1. DD-2 Tape Entities
EOP/BOP
EOP/BOP
clear
clear BOT EOT
partition
partition
partition
VFI
INFORMATION ZONE
EOP
BOP
trailer
leader zone zone
partition
0
1
n
n+1
PARTITION
EOP/BOP
EOP/BOP
EMW/EW
FSN #n
FSN #2
FSN #1
EOR/
BOM
(PARTITION DETAIL)
SYSTEM ZONE
VFI
LOAD OPERATION
ZONE (LOZ)
ZONE
BOT SIDE EOT SIDE
(SYTEMS ZONES ARE INTERSPERSED THROUGHOUT THE INFORMATION ZONE.
EOD
THEIR SPACING IS USER CONFIIGURABLE.)