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HP, SCSI Harddisk, ULTRA320 & ULTRA3

Posted on 2008-06-14
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Hi,

I have a raid controller card. This model is Smart Array 532 Controller. There are 3 ULTRA3 36.4 harddisks on the raid controller card. And I will add 3 hdd too.

Ultra320 and ultra3 are same model? Or That raid controller card support ultra320 hdd?

Serkan
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Question by:serkanakyol
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kanlue earned 50 total points
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first, the Smart Array 532 supports 'ultra320' hdd, please check the link in hp.com:
http://h18004.www1.hp.com/products/quickspecs/10851_na/10851_na.html

and about ultra3 and ultra320, they are not same model; ultra320 backward-compatible ultra3.
"Most SCSI products are backward-compatible. While an Ultra320 SCSI may use an Ultra3 or Ultra160 controller to interface with a drive, such a configuration will not, achieve the faster drive's optimal data transfer rates."

"The SCSI terms Fast, Ultra or Ultra320 typically refer to data rate increases that move data faster on the bus, while the term Wide refers to adding more lanes to the bus, typically transferring 16 bits of data at one time rather than eight bits. Other differences between the standards include the maximum cable length and the number of devices that can exist on the same SCSI bus.
The subsets of Ultra3 are commonly called Ultra160 (160MB/s) and Ultra320 (320MB/s)."

please check the link for more info:
http://www.hitachigst.com/hdd/library/interfaces.htm

hope it helps.


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