Drive Ready Time - IBM DTTA-351010 - Deskstar 10.1 GB Hard Drive Specifications

3.3.2.4 Cylinder Switch Time (Cylinder Skew)
Cylinder Switch Time (Typical)
Figure 7. Cylinder Switch Time
A cylinder switch time is defined as the amount of time required by the fixed disk to complete seek the next
sequential block after reading the last track in the current cylinder.
The measurement method is given in 3.3.5, "Throughput" on page 13.
3.3.2.5 Single Track Seek Time (Without Command Overhead, Including Settling)
Function
Read
Write
Figure 8. Single Track Seek Time
Single track seek is measured as the average of one (1) single track seek from every track with a random head
switch in both direction (inward and outward).
3.3.2.6 Average Latency
Model
DTTA-35xxxx
DTTA-37xxxx
Figure 9. Latency Time

3.3.3 Drive Ready Time

Power On to Ready
Figure 10. Drive Ready Time
Ready The condition in which the drive is able to perform a media access command (e.g.
read, write) immediately.
Power On This includes the time required for the internal self diagnostics.
Note: Max Power On to ready Time is the maximum time period Device 0 waits up to for
Device 1 to assert -PDIAG.
DTTA-35xxxx
Typical
Time for a revolution
DTTA-35xxxx
13 sec (typical) / 31 sec (max)
DTTA-37xxxx
3.4 msec
1.7 msec
2.2 msec
Average Latency
11.1 msec
8.3 msec
DTTA-37xxxx
18 sec (typical) / 31 sec (max)
Drive Characteristics
2.6 msec
Max
2.4 msec
2.9 msec
5.56 msec
4.17 msec
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