DDS-4 comes in LVD Ultra3 SCSI, it does not connect directly on a NON- A or
N class e3000.   You can use DDS-2 or better yet DDS-3.  The best method
would be a DLT device.  You will need a FWD SCSI connection to connect
directly to one of these on a NON- A or N class machine.  You can perhaps
pick up a used or refurbished HVD DLT 7000 for not too much money.  The 4000
is available in SE-SCSI, but since the default definition on MPE calls for
the driver to be SCSI_TAPE2_DM, you probably cannot use this device on the
3000, you need to use a FW HVD SCSI connection for the 4000 even though the
transfer rate is in the range of the DDS-3's transfer rate.


Denys

-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]]On Behalf Of
rosenblatt, joseph
Sent: Friday, May 03, 2002 10:01 AM
To: [log in to unmask]
Subject: Thinking about a new tape drive

If you have an extra SE SCSI port I would recommend using 2 drives and doing
a parallel backup. This decreases the time spent by slightly less than half.
DDS4 is not yet supported on MPE so your only choice is a DDS3.

You could at also look at a DLT which is supported. This, I believe, would
require a free FW/SCSI port. The transfer rate is 1.5 MB/PS for the 4000 and
6MB/PS for the 8000.
The initial investment is a couple hundred more but they are more reliable.
The cost of tapes is also higher but you can reuse them forever unlike DAT
media.

HTH,
The opinions expressed herein are my own and not necessarily those of my
employer.
Yosef Rosenblatt

PS Larry, Thanks for the plug.

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