New backup devices ( QIC-525 cartridge and
1.2 GB DDS )
The 1.2GB DDS (DAT) unit commenced shipment on the 22nd November
(product code TI44433). This half height unit can be installed in the VX FT server with
minimal effort. A replacement SCSI cable is supplied as the connector on the backup of the
drive is inverted. A bank of dip switches on the drive is used to vary SCSI parameters. A
jumper can be used to set the SCSI ID but this is unnecessary.
| Switch |
Setting |
Function |
| 1 |
OFF |
|
| 2 |
ON |
SCSI ID (set to 2) |
| 3 |
OFF |
|
| 4 |
ON |
SCSI I or SCSI II |
| 5 |
OFF |
SCSI Parity |
| 6 |
OFF |
SCSI Diagnostics |
| 7-8 |
Reserved |
Reserved |
The two black terminating resistors must be removed before the drive is
installed in a VX FT server.
Under Xenix and Unix the drive is simply addressed as a standard tape on
SCSI ID 2 if the switches are set as above.
The QIC-525 1/4" cartridge is also a half height internal VX FT
option which again requires the removal of any terminating resistors on the tape unit.
This time the SCSI ID is set with a jumper which should be:
/----------\
* * |* *| * * *
\---------/ /------------\
* * * * |* *| *
/----------\ \------------/
* * |* *| * * *
\-----------/
This drive does not require the use of a different SCSI cable.
Media for the DDS unit is available on product code DA44990, there is a
choice for the QIC-525 unit, 3M DC6320 (320MB) 600 ft tapes are GH46142 and the 1000 ft 3M
DC6525 (525MB) tapes are GH46143. Tapes used in the QIC-525 unit currently must be
manufactured by 3M, equivalents are not acceptable at this juncture.
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