Adding another SCSI drive to 4/260

[Jeff Weber]

In article <4231 at brazos.Rice.edu> dan at candide.Berkeley.EDU (Dan Ruderman) writes:
>X-Sun-Spots-Digest: Volume 9, Issue 5, message 9 of 19
>
>We have a 4/260 with 2 327MB SCSI drives and a SCSI tape.  Is it possible
>to add an external SCSI drive without installing another board?
>
>Thanks,
>Dan Ruderman

*	We've been through this a few times before, you'd think I'd 
*       remember to just keep the info in a file and mail the file!

The X/X60 package has an INTERNAL version of Sun's SCSI H/A that runs the
SCSI cable off the backplane (where the boards plug in) up through the
inside of the enclosure to the SCSI devices in the top.  The problem is:
a) there is no external connection on the SCSI board, b) there is a way to
extend the SCSI cable but not without violation of the FCC that is
reliable c) you only have 20feet of cable length to spread around anyway.
Your options are: 1) buy another SCSI H/A from anyone who had drivers (you
can still boot off your Sun board so the new one doesn't have to be Sun
boot compatable), 2) build a kluge cable to bring out the bus and blow off
FCC.  I've done both and have reasonable way to do #2 but unless you're
pretty good with your hands or real tight on the budget I'd do #1.  Good
boards are available from XYLOGICS, Interphase and Ciprico that have
installation support and drivers.