Virtual TapeServer 6.03.41 Installation Guide

Cabling and Connecting VTS | 23
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 six 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.
The SCSI ports supported by VTS are Ultra160-LVD SCSI, with very high density connector
interface (VHDCI) connectors. High-voltage differential (HVD) SCSI is supported through the
SCSI converter. Connectors are labeled by bus number. Devices connected to different buses
can have the same SCSI ID.
The Fibre Channel ports on VTS support 4Gb Fibre Channel using LC-type connectors.
Connectors are labeled by port number. Devices connected to different ports can have the
same port ID.
Note Make a note of device IDs and the bus or port numbers to which they are connected.
You need this information to set up VTS.
Fibre Channel
Fibre Channel tape drives can be connected directly to the dual-channel fiber controller
included in some VTS models using a male LC type connector. The connector used on the
opposite end of the cable depends on the Fibre Channel tape drive used.
SCSI LVD
LVD tape drives can be connected to any SCSI port on the VTS server module that has not
been reserved for use as a virtual tape drive. The VTS server module uses a female VHDCI
connector, so a cable with a male VHDCI is required. Depending on the type of tape drive,
that end of the cable probably uses a male MD68 connector. Two drives can be daisy chained,
and an LVD external terminator is required on the last drive in the chain. SCSI cable length