Seek Time; Format Drive Command Execution Time; Figure 3. Oem Interruptible Thermal Calibration Implementation - Seagate ST15150N - Barracuda 4.3 GB Hard Drive Product Manual

ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
5.2.1
5.2.2
Start
A
Has
10 min.
timer
No
expired?
Yes
Set
10 minute
timer
Is
SCSI
command in
progress?
No
Yes
Complete
Command
Seek to
TCAL cyl
and select
head zero

Figure 3. OEM interruptible thermal calibration implementation

Seek time

Drive level (msec)
read
Average typ* 8.0
Single track typ* 0.6
Full stroke typ* 17
*Typical seek values are measured under nominal conditions of tempera-
ture, voltage, and horizontal orientation on a representative sample of
drives.

Format drive command execution time

for 512-byte sectors
Maximum (with verify)
Maximum (without verify)
TCAL
head
Has
target
received a SCSI
No
command?
All All
heads heads
calibrated? Yes calibrated?
No
Select
next
head
Drive including
controller overhead
without disconnect* (msec)
write read
9.0 9.0
0.9 1.6
19 18.0
60 minutes
40 minutes
Has
target
No
received a SCSI
command?
Yes Yes
Target
completes
SCSI
No
command
Yes
Seek to
TCAL cyl
and select
A
next head
write
10.0
1.9
20.0
13