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2.5 Physical characteristics
Maximum height
1TB and 500GB models
Maximum width
Maximum length
Typical weight
1TB and 500GB model
Cache buffer
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.
Typical seek times (ms)
Track-to-track
Average
Average latency
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
Note
these drives are formatted, benchmark tests that include command overhead or
measure logical seeks may produce results that vary from these specifications.
2.7 Start/stop times
Start/stop times @ 25°C
Power-on to ready (max)
Standby to ready (max)
Ready to spindle stop (max)
Seagate Video 3.5 HDD Product Manual, Rev. B
1TB and 500GB
Read
Write
<1.0
<1.2
<12.0
<12.0
5.1
5.1
1TB and 500GB model
< 6.0s
< 6.0s
10.0s
20mm / 0.787 in
101.6mm / 4.0 in (± 0.010 in)
147.00mm / 5.78 in
415g / 0.915 lb
64MB (65,536kb)
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