IBM DYLA-28100 Hard Drive Specifications - Page 117

Set by Set Features Command 01h to FEh

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Word 84 85 86 87 88 89 90 91 92 127 128 129 130 131 132 255 Content Description 0000H Reserved 000XH ABLE enable. Bit assignments 15 4 Reserved 3 1= Enable, 0= Disable 20 Reserved 0000H Reserved 0007H Ultra DMA Transfer mode (mode 2 supported) 000AH Reserved 0010H Reserved 4080H ABLE mode currect setting 15(=0) Always 14(=1) Always 13 8(=0) Reserved 7 0(=X) Currect Adaptive Power Save Transition Setting Set by Set Features Command (01h to FEh) 0000H Reserved XXXXH Security Mode Feature. Bit assignments 0 Capability 1= Support 1 Enable/Disable 1= Enable 2 Lock 1= Locked 3 Freeze 1= Frozen 4 Expire 1= Expired 8 Security Level 1= Maximum, 0= High 9 15 Reserved XXXXH * Current Set Feature Option. Bit assignments 0 Write Cache 1= Enable 1 Read Look ahead 1= Enable 2 Reverting 1= Enable 3 Auto reassign 1= Enable 4 15 Reserved XXXXH * Reserved 000XH * Initial Power Mode Selection. Bit assignments 0 Initial Power Mode 1= Standby, 0= Idle 1 15 Reserved 0000H Reserved Figure 66. Identify device information --- Continued --- Notes: 1. The '*' mark in 'Content' field indicates the use of those parameters that are vedor specific. 2. Default value of Logical Cylinders, Logical Heads, Total number of user addressable sectors, and the Model number in ASCII are as follows. These values are default and can be modified by Set Max LBA/CYL command except model number. Figure 67. Default Parameters Model Cylinders DYLA-28100 3E08H DYLA-27900 3FFFH DYLA-26480 3410H Heads 010FH 000FH 000FH Total LBAs F43F80H EC3C4FH C02F10H Model Number in ASCII IBM-DYLA-28100 IBM-DYLA-27900 IBM-DYLA-26480 Command Descriptions 109

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Word
Content
Description
84 85
0000H
Reserved
86
000XH
ABLE enable. Bit assignments
15
4
Reserved
3
1= Enable, 0= Disable
2
0
Reserved
87
0000H
Reserved
88
0007H
Ultra DMA Transfer mode (mode 2 supported)
89
000AH
Reserved
90
0010H
Reserved
91
4080H
ABLE mode currect setting
15(=0) Always
14(=1) Always
13
8(=0) Reserved
7
0(=X) Currect Adaptive Power Save
Transition Setting
Set by Set Features Command (01h to FEh)
92 127
0000H
Reserved
128
XXXXH
Security Mode Feature. Bit assignments
0
Capability
1= Support
1
Enable/Disable
1= Enable
2
Lock
1= Locked
3
Freeze
1= Frozen
4
Expire
1= Expired
8
Security Level
1= Maximum, 0= High
9 15
Reserved
129
XXXXH
*
Current Set Feature Option. Bit assignments
0
Write Cache
1= Enable
1
Read Look ahead
1= Enable
2
Reverting
1= Enable
3
Auto reassign
1= Enable
4 15
Reserved
130
XXXXH
*
Reserved
131
000XH
*
Initial Power Mode Selection. Bit assignments
0
Initial Power Mode
1= Standby, 0= Idle
1 15
Reserved
132 255
0000H
Reserved
Figure 66. Identify device information --- Continued ---
Notes:
1. The '*' mark in 'Content' field indicates the use of those parameters that are vedor specific.
2. Default value of Logical Cylinders, Logical Heads, Total number of user addressable sectors, and the
Model number in ASCII are as follows.
These values are default and can be modified by Set Max LBA/CYL command except model number.
Figure 67. Default Parameters
Model
Cylinders
Heads
Total LBAs
Model Number in ASCII
DYLA-28100
3E08H
010FH
F43F80H
IBM-DYLA-28100
DYLA-27900
3FFFH
000FH
EC3C4FH
IBM-DYLA-27900
DYLA-26480
3410H
000FH
C02F10H
IBM-DYLA-26480
Command Descriptions
109