Emulex MD21/S2, Technical Manual

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Disk Operations
SECTOR
r
HEADER ID
_____
* *
INTER
SECTOR
GAP
ADDRESS
MARK
PAD
PLO
SYNC
SYNC
BYTE
FE
h
CYLINDER
NUMBER
(MSB)
CYLINDER
NUMBER
(LSB)
TRACK
NUMBER
SECTOR
NUMBER FLAGS
CRC PAD
WRITE
SPLICE
3 BYTES | 1BYTE 1 BYTE 1 BYTE 1 BYTE 1 BYTE I 2 BYTES |
1 BYTE 2 BYTES 1 BYTE
9
I PLO
SYNC
SPEED
, SYNC BYTE
FE
h
DATA ECC PAD
TOLER­
ANCE
Y
256 OR 512 BYTES
-A
------- f -------
6 BYTES
■ A y . /
2 BYTES
‘ REPORTED BYTES AFTER INDEX FROM THE DRIVE
“ REPORTED PLO FIELD FROM THE DRIVE +1.
MD2103-0822
Figure 4-2. Sector Format for Soft-Sectored Disk Drives
4-8 Drive Configuration Parameters