[comp.periphs.scsi] SCSI tape question

cfj@isc.intel.com (Charlie Johnson) (09/07/90)

I was wonder if someone out there could give me a hint on what is the normal
way that most systems handle the reading from tape when the blocksize does
not match the blocksize that the tape was written in ??  Should this be
considered an error ??  Particularly, I have an Exabyte 8200 which I'm reading
in fixed block mode.  The number of blocks that I get back in the info bytes
of the sense data is always the same as the number of blocks which were
requested in the read (which says to me that no data was transfered!). It
doesn't make any difference if the read blocksize is greater than the write
blocksize or less than.



Thanks!!

-- 
Charles Johnson
Intel Scientific Computers, MS CO1-01
15201 NW Greenbrier Pkwy
Beaverton, OR  97006           phone: (503)629-7605  email: cfj@isc.intel.com

km@dsl.pitt.edu (Ken Mitchum) (02/24/91)

I am trying to connect a Wangtek 5099EN24 drive with Emulex MT02
controller to a 386 machine with Adaptec 1540A running ISC Unix 2.0.2.
I have no manuals for the tape drive or Emulex controller (naturally)
but know how to set the SCSI unit number on the MT02. ISC is properly
configured. It appears that the MT02 does not respond to an inquiry
command, so the init routines do not notice there is a tape device
on the scsi bus, and don't put an entry in the scsi configuration tables
for the driver. I would appreciate hearing from anyone who has previously
tackled this problem (I don't like to reinvent the wheel) or has 
experience with this drive/controller combination.

  Ken Mitchum KY3B
  km@cs.pitt.edu