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OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH
7.0 Operating Limits
The IBM Corporate specifications and bulletins, such as C-S 1-9700-000 in the contaminants section, that
are referenced in this document are available for review. (Please contact your IBM Customer)
7.1 Environmental
Temperature
Operating Ambient 41 to 131˚F (5 to 55˚C)
Operating Casting Temperature 41 to 158˚F (5 to 70˚C)
Storage 34 to 149˚F (1 to 65˚C) See Note
Shipping -40 to 149˚F (-40 to 65˚C)
Temperature Gradient
Operating 36˚F (20˚C) per hour
Shipping and storage below condensation
Humidity
Operating 5% to 90% noncondensing
Storage 5% to 95% noncondensing
Shipping 5% to 100% (Applies at the packaged level)
Wet Bulb Temperature
Operating 80˚F (26.7˚C) maximum
Shipping and Storage 85˚F (29.4˚C) maximum
Elevation
Operating and Storage -1000 to 10,000 feet (-304.8 to 3048 meters)
Shipping -1000 to 40,000 feet (-304.8 to 12,192 meters)
Note: Guidelines for storage below 1˚C are given in IBM Technical Report TR 07.2112.
7.1.1 Temperature Measurement Points
The following is a list of measurement points and their temperatures (maximum and reliability). Maximum
temperatures must not be exceeded at the worst case drive and system operating conditions with the drive
randomly seeking, reading and writing. Reliability temperatures must not be exceeded at the nominal drive
and system operating conditions with the drive randomly seeking, reading, and writing.
There must be significant air flow through the drive so that the casting and module temperature limits define
in Table 15 are not exceeded. Figure 22 on page 78 defines where measurements should be made to deter-
mine the top casting temperature during drive operation. Figure 23 on page 79 identify the module
locations on the bottom side of the card and the measurement location on the bottom of the casting.
Source filename=OPLIMITS IBM Corporation Page 77 of 87