Product manual

Bytes
Bits
7 6543210
default 000000
H
changeable 000000
H
9–11 Starting cylinder for reduced write current
default 000000
H
changeable 000000
H
12–13 (default) Drive step rate (0000
H
)
changeable 0000
H
14–16 (default) Loading zone cylinder (000000
H
)
changeable 000000
H
17 (default) Reserved (00
H
)
changeable 00
H
18 (default) Rotational offset (00
H
)
changeable 00
H
19 (default) Reserved (00
H
)
changeable 00
H
20–21 Media rotation rate
default 1515
H
changeable 0000
H
22–23 (default) Reserved (0000
H
)
changeable 0000
H
Bytes 2–4
The number of cylinders field specifies the total number
of cylinders, including 2,000 spare blocks at the end of the
volume. The user-accessible cylinders may be less. The
drive’s first requirement is the user capacity, not the
number of cylinders. The drive slips defects during format
unit, so the maximum LBA’s physical location depends on
the number of slipped sectors. The slipping of LBAs
across the drive volume increases the data throughput.
The drive uses the additional cylinders for storing parame-
ters and defect lists or for diagnostic purposes.
Byte 5
The
number of heads field specifies the number of
read/write heads on the drive.
Bytes 6–16
The
starting cylinder for reduced write current , starting
cylinder for reduced read current, drive step rate
and
Medalist Pro 2160N/2160WC Product Manual, Rev. A 105