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OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH
Table 16. Random Vibration Levels
Class 5hz 17 hz 45 hz 48 hz 62 hz 65 hz 150 hz 200 hz 500 hz RMS
V4 2.0E-5 1.1E-3 1.1E-3 8.0E-3 8.0E-3 1.0E-3 1.0E-3 8.0E-5 8.0E-5 0.56
V4S 2.0E-5 1.1E-3 1.1E-3 8.0E-3 8.0E-3 1.0E-3 1.0E-3 4.0E-5 4.0E-5 0.55
units g
2
/hz g
Swept Sine Vibration
The drive will operate without hard errors when subjected to the swept sine vibration of 1.0 G peak from 5
to 300 hz in the x- and y direction. For input in the z-direction, an input of 1.0 G peak amplitude can be
applied from 5 hz to 250 hz, the amplitude at 300 hz is 0.5 G peak. Linear interpolation is used to deter-
mine the acceleration levels between 250 hz and 300 hz.
The test will consist of a sweep from 5 to 300 hz and back to 5 hz. The sweep rate will be one hz per
second.
Note: 1.0 G acceleration at 5 hz requires 0.78 inch double amplitude displacement.
(The connector on the right edge does not represent SSA connector)
Figure 24. Ultrastar XP SSA Drive Small Form Factor Assembly —CxC Models
7.2.3.1 Nonoperating Vibration
No damage will occur as long as vibration at the un-packaged drive in all three directions defined above does
not exceed the levels defined in the table below. The test will consist of a sweep from 5 hz to 200 hz and
back to 5 hz at a sweep rate of eight decades per hour.
Source filename=OPLIMITS IBM Corporation Page 81 of 87