
Specifications
4-10 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives
4.6 ACOUSTICSTable 4-6 specifies the acoustical characteristics of the Quantum Atlas 10K II Ultra
160/m SCSI hard disk drive. Acoustic measurements are taken in an anechoic
chamber with background noise <25 dBA.
Table 4-6 Acoustical Characteristics
Acoustic Emissions (Typ / Max)
9.2 GB 18.4 GB 36.7 GB 73.4 GB
Typical
Active (ECMA Seeking)
Idle
4.4 / 4.7 dB
3.9 / 4.2 dB
4.4 / 4.7 dB
3.9 / 4.2 dB
4.4 / 4.7 dB
3.9 / 4.2 dB
4.9 / 5.2 dB
4.3 / 4.6 dB
NOTE
ECMA Seek Rate is defined in ECMA standard 74. It corresponds to 52
random seeks per second.
4.7 MECHANICALDimensions 9.1 GB 18.4 GB 36.7 GB 73.4 GB
Height (in / mm) (3-sigma) 1.0 inch /
25.72 mm ± 0.24 1.0 inch /
25.72 mm ± 0.24 1.0 inch /
25.72 mm ± 0.24 1.64 inch /
41.6 mm ± 0.24
Width (in / mm) 4.0 inch /
101.6 mm ± 0.25 4.0 inch /
101.6 mm ± 0.25 4.0 inch /
101.6 mm ± 0.25 4.0 inch /
101.6 mm ± 0.25
Length (in / mm) 5.75 inch /
146.5 mm ± 0.25 5.75 inch /
146.5 mm ± 0.25 5.75 inch /
146.5 mm ± 0.25 5.75 inch /
146.5 mm ± 0.25
Weight (lbs / kg, nominal) 1.4 / 0.64 1.4 / 0.64 1.5 / 0.68 2.4 / 1.1
NOTE
All dimensions are exclusive of any optional faceplate (bezel).