Seagate ST9500325AS Momentus 5400.6 SATA Product Manual - Page 16

2.6 Physical characteristics Drive specification Height (mm) (inches) Width (mm) (inches) Length (mm) (inches) Weight (max) ST9500325AS ST9500325ASG ST9400326AS ST9320325AS ST9320325ASG ST9250315AS ST9250315ASG ST9160314AS ST9160314ASG ST9120315AS ST9120315ASG ST980313AS ST980313ASG ST9160301AS 9.5 +/-0.2 0.374 +/-0.0079 69.85 +/-0.25 2.75 +/-0.0098 100.35 +0.20 / -0.25 3.957 +0.0079 / -0.0098 98.8 grams 0.218 pounds 93.5 grams 0.206 pounds 105 grams 0.23 pounds 2.7 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 4: Typical seek times Seek times (msec) Track-to-track (typical) Average (typical) Full-stroke (max) Average latency Read 1 14 30 5.56 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 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. 2.8 Start/stop times Time to ready Power-on to Ready (sec) Standby to Ready (sec) Typical 3.6 1.8 Max @ 25°C 3.8 2 10 Momentus 5400.6 SATA Product Manual, Rev. E