by : I would like to install an IBM DDRS34560W disk drive (Ultra-wide scsi)
: on an IBM RISC6000 43P/140 workstation.
: The manual says that I need an optional adapter for any Ultra scsi drive,
: but the Ddrs34560 documentation says that it is backward compatible
: to fast/wide scsi 2 ...
: Who is right ? Can I install the new drive ?
Yes. You can. And it's a good idea..
I'm running Cheetah Ultra2 disks on a 595 with only fast/wide because IBM in
it's everlasting wisdom decided not to produce UltraWide or Ultra2 SCSI
adapters for Microchannel hardware..
Ultra2 and UltraWide CAN RUN on FastWide adapters. You don't get the bus
performance boost, but for a single drive it's enough, and you get the
access time boost..
Gerhard Schneider
--
Institute of Light Weight Structures (E317) Tel.: +43 1 58801 31716
Vienna University of Technology / Austria Fax: +43 1 58801 31799
A-1040 Wien, Gusshausstrasse 27-29 http://ilfb.tuwien.ac.at/~gs/