SUMMARY of original posting below:
>Does anyone have any experience with connecting a third party
>SCSI disk to a Sun4/280? A Sun sales rep told me that external
>SCSI disk are not supported on Sun4/280's and Sun4/390's since
>the SCSI controller for these machines can only handle low
>speed devices such as CD-ROM's, tape drives, etc. Slow speed
>here means max transfer rate of 1.5MB/sec.
>
> Is it possible to connect an external SCSI disk to a Sun4/280
> and get reliable performance? i.e. what happens if I
> connect a disk with transfer rate of 2.0MB/s to a controller
> with max transfer rate of 1.5MB/s. Will data just pass at
> 1.5MB/s or will some of it be consistently lost?
>
The experience from several system administrators indicate that
it is possible to connect a faster SCSI disk to the Sun4/280
controller without data loss. Although the SCSI controller
is rated at 1.5MB/s, it can buffer data to/from the device.
The disks mentioned by the repliers to my questions however,
are in the < 2.5MB/s transfer rate, so although these replies
answer my question satisfactorily, I am unsure if this would
apply to disks with much higher transfer rates than 1.5MB/s
(4+MB/s).
For their kind assistance, I would like to thank:
Fons Ullings (fons@nat.vu.nl)
Jeff Johnson(jeff@wsm.com)
Steve Jay(shj@ultra.com)
Jeff Ross(ross@fdurt1.fdu.edu)
Michael Lampi(lampi@pilchuck.data-io.com)
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:06:37 CDT