Reformat Track - HP C2488A Technical Reference Manual

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
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