[comp.os.vms] Help: WangDat drive in VaxStation 3100/SPX

bolson@milton.u.washington.edu (Ed Bolson) (10/02/90)

I am the proud new owner of a WangDat Model 1300 4mm DAT drive from R-Squared.
I have attached it to a VAXStation 3100, model 38/SPX, running VMS 5.3-1.
The system recognizes the drive and I have successfully backed up and
restored small and large datasets to it.  However . . .

I have had a lot of nagging problems with these operations.  File search on
the DAT drive is supposed to be very fast.  However, I just did a search for
a non-existent file on a tape with 2 BACKUP datasets, taking about 600 MB.
The search lasted an hour to tell me there was no such dataset.  Note I was
looking for a Backup dataset to list, not a file IN a dataset.

Also, I have occasionally had a refusal by the drive to do anything.
Of course, this slow search speed means I don't always know what it is
doing.  There are no displays or diagnositics for the device, so I can't
easily monitor its operation.  I have received "SCSI phase errors" errpr
log messages and "Command Transmission Failure" along with FATAL
CONTROLLER ERROR system messages.

My question (finally): is this a drive problem, or a problem with the
supplied SCSI software from DEC.  Since DEC doesn't yet have a DAT drive
out there, I am not sure who to blame.  When responding (preferably by
e-mail) please keep in mind this is a VMS VAXStation, not a DECStation, and
not a machine with a Q-bus to SCSI converter.  This uses the native
SCSI bus on the VAXStation.

Thanks,

Ed Bolson

bolson@milton.u.washington.edu (Ed Bolson) (10/02/90)

I am very sorry, but the posting program here can't seem to read my totally
unprotected signature file.

Ed Bolson
Bolson@u.washington.edu
bolson@cv3150.hs.washington.edu
bolson@max.bitnet

(Previous post was about problems with new SCSI DAT drive on VAXStation 
running VMS)