topic Re: Can I use Ultra3 in ultra2 controller? in ProLiant Servers (ML,DL,SL)

Can I use Ultra3 in ultra2 controller?

netyon — Fri, 11 Jul 2008 05:18:52 GMT

I have ML350 G1...
and I bought Compaq HP 36.4GB Wide ULTRA3 SCSI 10K RPM Hot Pluggable U3 Universal Hard Drive 36GB.. it's 80 pins..

it was my Big!! mistake -_-;; haha..
the ML350 G1 has Integrated Dual Channel Wide Ultra2 SCSI Adapter 68pins and non-hot plug.

Can I still use the wide ultra3 scsi to my wide ultra2 SCSI controller without ultra3 scsi controller?

and I found SCA 80 ADAPTER TO 68 PIN ULTRA SCSI II/III LVD-SE..

also, some site said "SCSI Compatibility
SCSI devices are generally backward-compatible, i.e., it is possible to connect an ultra-3 SCSI hard disk to an ultra-2 SCSI controller and use it (though with reduced speed and feature set)."

is it true??

Re: Can I use Ultra3 in ultra2 controller?

Torsten. — Fri, 11 Jul 2008 05:32:04 GMT

In general it is compatible. The controller will negotiate the speed with the drives.
Anyway, the use of the adapters may not be the best solution, but should work.

Re: Can I use Ultra3 in ultra2 controller?

netyon — Fri, 11 Jul 2008 11:11:56 GMT

Thank you!
I am going to buy SCA 80 ADAPTER TO 68 PIN ULTRA SCSI II/III LVD-SE from ebay now~
it's fine... may not be the best solution..
just Hope to work ^^..
I will leave reply after try!!

Thank you again~
Have a good day!

Re: Can I use Ultra3 in ultra2 controller?

Torsten. — Fri, 11 Jul 2008 11:21:53 GMT

I have seen ultra2 disks even with pure SE-SCSI controllers ... slow, but working.

Good luck!