Security Erase Unit (F4H) - IBM DYLA-28100 - Travelstar 8.1 GB Hard Drive Specifications

12.21 Security Erase Unit (F4h)

C o m m a n d B l o c k O u t p u t R e g i s t e r s
R e g i s t e r
D a t a
F e a t u r e
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
C o m m a n d
E r r o r R e g i s t e r
7 6 5
C R C U N C 0 I D N
0 0 0
Figure 83. Security Erase Unit Command (F4h)
The Security Erase Unit command initializes all user data sectors, then disables the device lock function.
Note that the Security Erase Unit command initializes from LBA 0 to Native MAX LBA. Host MAX
LBA set by Initialize Drive Parameter or Set MAX LBA/CYL command is ignored. So the protected area
by Set MAX LBA/CYL command is also initialized.
This command requests to transfer a single sector data from the host including information specified in
Figure 84.
If the password does not match then the device rejects the command with an Aborted error.
W o r d
0 0
0 1 1 6
1 7 2 5 5
Figure 84. Erase Unit information
130
O E M Specifications of DYLA-2xxxx 2.5 inch H D D
7 6 5 4 3 2 1 0
1 1 D
1 1 1 1 0 1 0 0
4 3 2 1 0
0 A B T T 0 N A M N
V 0 V 0 0
D e s c r i p t i o n
C o n t r o l w o r d
b i t 0 : I d e n t i f i e r ( 1
b i t 1 1 5 : R e s e r v e d
P a s s w o r d
R e s e r v e d
C o m m a n d B l o c k I n p u t R e g i s t e r s
R e g i s t e r
D a t a
E r r o r
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
S t a t u s
S t a t u s R e g i s t e r
7 6 5 4
B S Y R D Y D F D S C D R Q C O R I D X E R R
0 V 0 V
M a s t e r , 0
( 3 2 b y t e s )
7 6 5 4 3 2 1 0
. . . S e e B e l o w . . .
. . . S e e B e l o w . . .
3 2 1 0
0 V
U s e r )