About This Manual
1-2Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives
• LVDS low voltage differential SCSI
• mA milliamperes
• MB megabytes (1 MB = 1,000,000 bytes when referring to disk storage and
1,048,576 bytes in all other cases)
• Mbit/S megabits per second
• MB/s megabytes per second
• ms milliseconds
• MSB most significant bit
• mv millivolts
• ns nanoseconds
• SCSI Small Computer System Interface
• tpi tracks per inch
• µsmicroseconds
• V volts
The typographical and naming conventions used in this manual are listed below.
Conventions that are unique to a specific table appear in the notes that follow that
table.
Typographical Conventions:
• Names of Bits: Bit names are presented in initial capitals. An example is the
Host Software Reset Bit.
• Commands: Firmware commands are listed as all capitals. An example is
MODE SELECT.
• Parameters: Parameters are given as initial capitals when spelled out, and are
given as all capitals when abbreviated. Examples are Prefetch Enable (PE) and
Cache Enable (CE).
• Hexadecimal Notation: The hexadecimal notation is given as in the example
30h, with the “h” indicating hexadecimal.
• Signal Negation: A signal that is non-active or is in its non-asserted state.
• Messages: A message that is sent from the drive to the host is listed in all
capitals. An example is BUS DEVICE RESET.
Naming Conventions:
• Host: In general, the system in which the drive resides is referred to as the host.
• Computer Voice: This refers to any items that the user types at a computer
keyboard. These items appear in this manual, if applicable, in 10-point, all
capitals, Courier New font. An example is FORMAT.