Seagate MEDALIST 1080SL Product Manual page 96

86 Medalist 1080sl SCSI Product Manual, August 1995
The number of cylinders field specifies the number of
Bytes 2–4
user-accessible cylinders, including two spare cylinders
for defects. The drive uses the additional cylinders for
storing parameters and defect lists or for diagnostic pur-
poses. The number of cylinders is specified on page 1.
Byte 5 The number of heads field specifies the number of
read/write heads on the drive. The number of heads is
specified on page 1.
The starting cylinder for reduced write current , starting
Bytes 6–16
cylinder for reduced read current, drive step rate and
loading zone cylinder bytes are not used by the drive.
Byte 17 When the rotational position locking (RPL) bits are 00
the rotational position locking is changeable. When the
RPL bits are 01
spindle with the synchronized master. When the RPL bits
are 10 or 11
B
master. RPL is not supported.
Byte 18 The rotational offset is the rotational skew the drive uses
when synchronized. The rotational skew is applied in the
retarded direction (lagging the sync spindle master). A
value of zero means no rotational offset is used. This
feature is not supported.
Byte 19 Reserved
Bytes 20–21 The medium rotation rate is the spindle speed, which is
specified on page 1.
Bytes 22–23 Reserved
, the drive automatically synchronizes its
B
, the drive is the synchronized-spindle
B
,
B