IBM Ultrastar 36LZX, Specifications

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8.8.10 Mode Page 0C (Notch Parameters)
(MSB) Pages Notched =
000000000000100Ch
(LSB)
16
|
23
(MSB)
Ending Boundary
(LSB)
12
|
15
(MSB)
Starting Boundary
(LSB)
8
|
11
7
(MSB)
Active Notch
(LSB)
6
5
(MSB)
Maximum Number of Notches = 0Bh
(LSB)
4
Reserved = 0 3
RSVD = 0
LPN =
0
ND
= 1
2
Page Length = 16h 1
Page Code = 0Ch
RSVD=
0
PS =
0
0
0 1 2 3 4 5 6 7
Bit
Byte
Figure 90. Page 0C (Notch Parameters)
The notch page contains parameters for direct-access devices which implement a variable number of
blocks per cylinder. Each section of the logical unit with a different number of blocks per cylinder is re-
ferred as a notch. The only field that is changeable is the
Active Notch field.
ND = ONE meaning that this device is a notched drive.
LPN = ZERO meaning that the notches are based upon physical parameters of the drive (cylinder #), not
logical parameters.
Maximum Number of Notches is the number of notches the drive can support.
Active Notch indicates to which notch subsequent Mode Select/Sense command parameters pertain. A
value of 0 is used for parameter values which apply to all notches. Values from 1 to the maximum value
depending on the model specify the notch number, where notch 1 is the outermost notch. Following
mode parameters are based on the current active notch:
Ÿ
Mode Page 2
- Read Buffer Full Ratio
- Write Buffer Empty Ratio
Ultrastar 36LZX hard disk drive specifications
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