Acoustics; Identification Labels; Table 39 Sound Power Levels - Hitachi CinemaStar P7K500 Specifications

5.9 Acoustics

The upper limit criteria of the octave sound power levels are given in Bels relative to one picowatt and are
shown in the following table. The sound power emission levels are measured in accordance with ISO
7779.
Mode
Idle
Operating
( Deskstar only )

Table 39 Sound power levels

Mode definition:
Idle mode. The drive is powered on, disks spinning, track following, unit ready to receive and respond
to interface commands.
Operating mode. Continuous random cylinder selection and seek operation of the actuator with a
dwell time at each cylinder. The seek rate for the drive is to be calculated as shown below:
Dwell time = 0.5 x 60/RPM
Seek rate = 0.4 / (Average seek time + Dwell time)

5.10 Identification labels

The following labels are affixed to every drive shipped from the drive manufacturing location in accordance
with the appropriate hard disk drive assembly drawing:
•
A label containing the Hitachi logo, the Hitachi Global Storage Technologies part number, and the
statement "Made by Hitachi Global Storage Technologies Inc." or Hitachi Global Storage Technologies
approved equivalent
•
A label containing the drive model number, the manufacturing date code, the formatted capacity, the
place of manufacture, UL/CSA/TUV/CE/C-Tick mark logos
•
A bar code label containing the drive serial number
•
A label containing the jumper pin description
•
A user designed label per agreement
The above labels may be integrated with other labels.
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
Typical / Max
1 disk model
2.5 (2.8) / 2.7
2.7 (3.1) / 3.1
54
2 disk model
2.6 / 2.8
2.8 / 3.0