Reformat
Track
Reformat Track
The
REFORMAT TRACK command will cause
the
addressed
track
on
the
disk drive
to
be
formatted according
to
the
setting of
the
Transfer Length field.
Caution
,
Byte
00
01
02-05
06-08
09
REFORMAT TRACK will cause
the
loss of all user
data
on
the
specified
track.
Use of this command should
be
restricted
to
development
or
other
highly controlled environments. Improper use of this command may cause
the
reformatted tracks
to
become unusable, or
other
user tracks
to
become
inaccessible. Loss
of
defect information may also result. Any use
of
this
command other
than
at
Hewlett-Packard approved sites and by
HP
approved
methods may be deemed a violation of warranty.
Reformat
Track
Command
DeSCriptor
Block
(COB)
Bit
7
I
6
I
5
I
4
J
3
1
2
L
1
1
0
Opcode
= EDH
Logical
Unit
Number
I
Reserved
(MSB=02)
Physical Block Address
(LSB=05)
Reserved
Control
Byte
Physical Block Address. This field selects
the
physical block address of
the
track
to
be
reformatted.
The
Address field is defined as follows:
• Byte
2:
Cylinder Address (MSB)
•
Byte
3:
Cylinder Address (LSB)
•
Byte
4:
Head Address
• Byte
5:
Sector Address (Ignored)
DRAFT
Vendor
Unique
Command
Descriptions
B·21
1/1R/A:"t
nA~~R
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