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6 DB35 Series Product Manual, Rev. B
2.4 Physical characteristics
2.5 Seek time
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using
drive diagnostics. The specifications in the table below are defined as follows:
• Track-to-track seek time is an average of all possible single-track seeks in both directions.
• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between
random tracks, less overhead.
Table 2: Typical seek times
Note. These drives are designed to consistently meet the seek times represented in this manual. Physical seeks,
regardless of mode (such as track-to-track and average), are expected to meet or exceed the noted values.
However, due to the manner in which these drives are formatted, benchmark tests that include command
overhead or measure logical seeks may produce results that vary from these specifications.
2.6 Start/stop times
Drive specification
Maximum height
(mm)
(inches)
26.11
1.028
Maximum width
(mm)
(inches)
101.85
4.010 ± 0.010
Maximum length
(mm)
(inches)
146.99
5.787
Typical weight
(grams)
(pounds)
635
1.39
Typical seek times (msec) Read Write
Track-to-track 0.8 1.0
Average 18 20
Average latency: 4.16 4.16
Power-on to Ready (sec) 15.5 (max)
Standby to Ready (sec) 14.0 (max)
Ready to spindle stop (sec) 10 (max)