2.6Seek time

Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications 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.

Typical seek times (msec)

Read

Write

 

 

 

Track-to-track

1.0

1.5

 

 

 

Average

<15

<15

 

 

 

Full-stroke

<23

<26

 

 

 

Average latency

5.6

5.6

 

 

 

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.

2.7Time to ready

Time to ready

Typical

Max @ 25°C

 

 

 

Power-on to Ready (sec)

3.0

8.0

 

 

 

Standby to Ready (sec)

3.0

8.0

 

 

 

8

LD25 Series 5400.2 Product Manual, Rev. C

Page 14
Image 14
Seagate ST980210AS, ST960210AS manual Seek time, Typical seek times msec Read Write, Time to ready Typical Max @ 25C