Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What issues are involved in connecting an Ultra160 (Ultra3) drive to an Ultra2 host adapter?

April 26, 2017adapter drive host involved Ultra160 Ultra2 ultra3

0

Posted

What issues are involved in connecting an Ultra160 (Ultra3) drive to an Ultra2 host adapter?

1 Answer

0

Posted

In general when new SCSI protocols are designed they are compatible with most of the previous protocols. This case is no exception. An Ultra3 drive attached to an Ultra2 host adapter will simply operate in Ultra2 LVD mode. If you connect that same Ultra3 drive to a SCSI-2 host adapter like an Adaptec 1540cf, it will operate in Fast-10 Single Ended mode. Essentially the host adapter and drive will negotiate for the best speed that they both have in common.