Hitachi IC25N040ATMR04-0 - Travelstar 40GB Laptop Hard Drive 9.5mm 2.5 Inch Notebook HDD Specifications page 204

We recommend that the host system execute Soft reset and then retry to issue the command if the host sys-
tem time-out would occur for the device.
Note 1. For SECURITY ERASE UNIT command, the execution time is referred to 13.27, "Security Erase
Unit (F4h)" on page 145.
Note 2. For FORMAT UNIT command, the execution time is referred to 13.7, "Format Unit (F7h: vendor
specific)" on page 109.
Note 3. When the initial power mode at power on is Standby mode and when the following commands are
issued by the host as First Command, the command's time-out value of the field is 10 seconds:
Security Disable Password
Security Erase Unit
Security Set Password
Security Unlock.
.
Travelstar 80GN Hard Disk Drive Specification
194