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ST320014A Product Manual, Rev. D 5
1.4 Physical characteristics
1.5 Start/stop times
1.6 Seek times
Seek measurements are taken with nominal power at 25°C ambient
temperature. All times are measured using drive diagnostics. Seek time
specifications 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.
• Full-stroke seek time is one-half the time needed to seek from the first
data cylinder to the maximum data cylinder and back to the first data
cylinder. The full-stroke typical value is determined by averaging 100
full-stroke seeks in both directions.
Note. These drives are designed to meet the seek times represented
in this manual consistently. Physical seeks, regardless of mode
Interleave 1:1
Cache buffer (Mbytes) 2
Drive Specification ST320014A
Maximum height mm (inches) 19.99 (0.787)
Maximum width mm (inches) 101.9 (4.01)
Maximum length mm (inches) 147.0 (5.78)
Typical weight grams (pounds) 455 (1.00)
Power-on to Ready (sec) 6.5 (typical)
Standby to Ready (sec) 6.5 (typical)
Ready to spindle stop (sec) 10 (typical)
Average seek time (msec typical) 12.7
Track-to-track seek time (msec typical) 1.2 (read) 2.0 (write)
Read/write seek time (msec typical) 18.0 (read) 24.9 (write)
Full-stroke seek time (msec typical) 36.8 (read); 42.0(write)
Power-on to ready (sec max) 7 sec