SUMMARY: Seagate ST3146807LC (147 GByte Cheetah 10K.6) in U60/U80?

From: Peter W. Osel <pwo_at_Infineon.COM>
Date: Fri Sep 05 2003 - 19:27:36 EDT
I had asked if anyone had a Seagate Cheetah 10K.6 (ST3146807LC, 147
GByte) disk running successfully inside an Ultra 60 and/or Ultra 80
system running Solaris 8?

Detailed information about the ST3146807LC disk can be found here:
http://www.seagate.com/cda/products/discsales/marketing/detail/0,1081,530,00.html


Though noone had used this disk yet, everone agreed that it should
work.  I will buy a disk and give it a try (found it for $617 ;-).


Concerns include performance and heat:

Performance
The internal SCSI bus in the U60/U80 supports 40 MByte/sec, the drive
supports up to 320 MByte/sec.  Installing a SCSI controller PCI card
might be a good idea, if performance becomes an issue.

Heat
I checked the Sun System Handbook http://sunsolve.sun.com/handbook_pub/
for internal 36.4 GByte 10000RPM Seagate disks supported in the U60,
and compared the specs with the ST3146807LC, 147 GByte disk:

					peak operating current SE mode
					5V		12V
ST336704LC (36.4 GByte 10000RPM)	0.84 - 1.2	1.12 - 2.64
ST336605LC (36.4 GByte 10000RPM)	0.73 - 1.17	0.82 - 2.35
ST336607LC (36.4 GByte 10000RPM)	0.83 - 1.78	0.68 - 2.21
ST3146807LC (147 GByte 10000RPM)	0.99 - 1.99	0.95 - 2.62

While the peak operating current in SE mode is a bit higher for the
ST3146807LC it seems still comparable enough to the 36.4 GByte drives
that I am not too concerned about cooling, especially in a datacenter
setup with a controlled (cool) environment.


Thank you all for your responses: Anthony A. D. Talltree, Paul
Ketelaar, Sven Heydecke.


Cheers
	--pwo



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--
Peter W. Osel                   Principal - Development Systems
Infineon Technologies           Email: pwo@Infineon.COM
North America Corp.             Phone: +1 (408) 501 6321
1730 North First Street         Fax:   +1 (408) 501 2410
San Jose, CA 95112, USA         WWW:   http://pwo.de/

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Received on Fri Sep 5 19:31:43 2003

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