Seagate Video 3.5 HDD Product Manual, Rev. B 10
www.seagate.com
2.5 Physical characteristics
2.6 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 5000 measurements of seeks between random tracks,
less overhead.
2.7 Start/stop times
Maximum height
1TB and 500GB models 20mm / 0.787 in
Maximum width 101.6mm / 4.0 in (± 0.010 in)
Maximum length 147.00mm / 5.78 in
Typical weight
1TB and 500GB model 415g / 0.915 lb
Cache buffer 64MB (65,536kb)
1TB and 500GB
Typical seek times (ms) Read Write
Track-to-track <1.0 <1.2
Average <12.0 <12.0
Average latency 5.1 5.1
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.
Start/stop times @ 25°C 1TB and 500GB model
Power-on to ready (max) < 6.0s
Standby to ready (max) < 6.0s
Ready to spindle stop (max) 10.0s
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