Thanks to all for your input.
Here is the basic info I hav gathered to date.
- SCSI fast narrow is easy to come by in both single ended and differential
flavors for both SBUS and VME. If you have the choice, go SBUS. A fast
narrow SBUS host adapter is available from SUN now, but delivery is 60-90
- I have not been able to find a fast wide SBUS host adapter yet, but
Performance Technologies expect to have one available in the April/May
time frame. For more info, talk to email@example.com.
- On a related note, and a crying shame, the ONLY SCSI fast wide host
adapter I have been able to find is by BUSLOGIC for PC's. (EISA).
For info, try
BusLogic Tel 408-492-9090
4151 Burton Drive
Santa Clara, CA
- You can mix SCSI slow sync/async and SCSI fast on the same single ended
bus and the host adapter will negociate and use the fastest mode
supported by each device on the bus. I suspect the same is true of
SCSI fast wide (ie. if device can't support wide, host adapter will talk
narrow) but there was no hard answer on this one.
- There are lots of fast narrow disks available now. Sun has them also.
- I know of 2 fast wide disks available from Seagate (Wren 9 and Elite).
- Coming late into the game, it may take a while for SCSI fast wide to
get a toe-hold.
- Differential SCSI might become more popular since there are more bus length
problems as the bus speed increases, but right now it is not common, and
it is expensive.
Once again, thanks to all for their input.
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:07:24 CDT