Hitachi HDS721050CLA362 - Table 138 Security Unlock Information

HITACHI Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification
188
When this counter reaches zero then all password protected commands are rejected until a hard reset or a
power off.
Word
Description
00
Control word
bit 0
: Identifier (1-Mater, 0-User)
bit 1-15
: Reserved
01-16
Password
(32 bytes)
17-255
Reserved
Table 137 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 file 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 file then
another problem exists.