Seagate ST410800W/WD Computer Hardware User Manual


 
Elite 9 Installation Guide, Rev. B 27
Figure 9 illustrates a typical synchronized spindle
configuration.
After connecting each drive with spindle sync cables,
you must designate a master spindle sync reference
source. This master source is normally a disc drive
located on the same SCSI bus as the other drives you
want to synchronize with. To designate a drive as the
master, use SCSI interface commands. Refer to the
Product Manual
for information about using these
commands.
Figure 9. Spindle sync diagram
Master Sync
Source
Host
(or other drive)
Spindle
Control
Drive 1
+5V
R
T
J4A
24
23
Spindle
Control
Drive 2
+5V
R
T
J4A
24
23
Spindle
Control
Drive n
+5V
R
T
J4A
24
23
Sync Interface
System
Interface