Virtual TapeServer 6.03.42 Installation Guide

26 | Cabling and Connecting VTS
requirements, refer to the storage manufacturer's user manual for the SCSI-based external
storage devices.
To connect VTS to a SCSI-based external storage that uses an MD68 connector, use a cable
with a male VHDCI connector on the VTS side and the appropriate (male or female) MD68
connector on the SCSI storage side. For connector specifics and termination requirements,
refer to the user manual for the SCSI-based external storage devices.
Connecting VTS to SCSI-based external storage that uses a Centronics HVD connector
requires a VTS SCSI converter. Use a cable with a male VHDCI connector on the server side
and a male MD68 connector on the converter side. A second cable is used to connect the SCSI
converter to the SCSI-based external storage. This cable uses a male Centronics connector on
the SCSI converter side and the appropriate (male or female) Centronics connector on the
SCSI storage side. Maximum total cable length between the VTS SCSI converter and the
external SCSI tape drive is 25 meters (82 feet). If a second SCSI tape drive is daisy chained,
the total cable length must remain under 25 meters (82 feet). For connector specifics and
termination requirements, refer to the storage manufacturer's user manual.
Cabling to external tape resources
The VTS server module is available with 4-16 usable I/O ports. Depending on the VTS model
and the NonStop server type, these can be SCSI, Fibre Channel, or a combination. These I/O
ports can be used for a combination of host or peripheral ports (or both) up to the limits of VTS
licensing.