Preface – Seagate CHEETAH 9 ST19101N/W/WC/WD/DC User Manual
Page 3
Cheetah 9 Installation Guide, Rev. B
1
Preface
This manual contains information for users of the Seagate®
Cheetah 9 SCSI disc drives. It provides support services, perfor-
mance specifications, and initial setup information. Additional
information is available in the
Cheetah 9 Product Manual
(part
number 83329170). Contact your Seagate sales representative
if you need to order this publication.
Attention.
This high performance Cheetah disc drive MUST
have proper power and cooling considerations for
reliable operation.
Why is there a difference between 10,000 RPM and 7,200 RPM
disc drives?
• Cheetah disc drives spinning at 10,000 RPM will dissipate
more heat than 7,200 RPM class disc drives (typical power
dissipation is 22.5 watts).
• The increased heat is primarily due to increased motor power
dissipated inside the drive.
• The increase in heat dissipation requires that the Cheetah
10,000 RPM disc drives receive more cooling consideration
than 7,200 RPM class disc drives.
• Proper consideration of enhanced cooling by conduction (heat
transfer thru material) can reduce the convection cooling (heat
transfer by air motion) requirements.
Note. Please contact Seagate technical support services or
your distributor’s technical support if you have questions.