IBM DTLA-305040 Hard Drive Specifications - Page 163

Reserved, Password 32 bytes, Control Word, bit 0, Identifier 1- Master, 0- User, bit 1-15 : Reserved

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Word 00 01-16 17-255 Description Control Word bit 0 : Identifier (1- Master, 0- User) bit 1-15 : Reserved Password ( 32 bytes ) Reserved Figure 115. Security Unlock Information Identifier Zero indicates that device regards Password as User Password. One indicates that device regards Password as Master Password. The user can detect if the attempt to unlock the device has failed due to a mismatched password as this is the only reason that an abort error will be returned by the drive AFTER the password information has been sent to the device. If an abort error is returned by the device BEFORE the password data has been sent to the drive, then another problem exists. Deskstar 40GV & 75GXP hard disk drive specifications 151

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Reserved
17-255
Password ( 32 bytes )
01-16
Control Word
bit 0
: Identifier (1- Master, 0- User)
bit 1-15 : Reserved
00
Description
Word
Figure 115. Security Unlock Information
Identifier
Zero indicates that device regards Password as User Password. One indicates
that device regards Password as Master Password.
The user can detect if the attempt to unlock the device has failed due to a mismatched password as this
is the only reason that an abort error will be returned by the drive AFTER the password information has
been sent to the device. If an abort error is returned by the device BEFORE the password data has been
sent to the drive, then another problem exists.
Deskstar 40GV & 75GXP hard disk drive specifications
151