User manual

Hitachi hard disk drive specifications
179
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 128 Password Information for Security Disable Password command
The device will compare the password sent from this host with that specified in the control word.
Identifier
Zero indicates that the device should check the supplied password against the user password
stored internally. One indicates that the device should check the given password against the
master password stored internally.