Virtual TapeServer 6.02.00 Installation Guide
 HP Virtual TapeServer Installation Guide 18  HP Part Number 528654-006 Sept 2006 
To connect Virtual TapeServer to a SCSI-based external storage that uses an MD68 connector, 
use a cable with a male VHDCI connector on the Virtual TapeServer 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. 
Virtual     SCSI Cable (25 meter / 80 foot maximum)    External 
 TapeServer   Male VHDCI       MD68   SCSI 
 Server   Connector           Connector   Storage 
 Module      
SCSI bus termination here
Connecting the Virtual TapeServer to SCSI-based external storage that uses a Centronics HVD 
connector requires a Virtual TapeServer SCSI interface conversion module. 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 interface conversion module to the SCSI-based 
external storage. This cable uses a male Centronics connector on the converter side and the 
appropriate (male or female) Centronics connector on the SCSI storage side. Maximum total 
cable length between the Virtual TapeServer SCSI interface conversion module 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. 
      2 meter(6 foot)   
 Virtual    SCSI Cable    Virtual   SCSI Cable  External 
 TapeServer         TapeServer        SCSI 
 Server   Male  Male   SCSI interface Male    Storage 
 Module  VHDCI MD68   Conv. Module Centronics  
  Connector Connector     Connector 
             SCSI bus termination here 
Cabling the Virtual TapeServer Server Module to External 
Tape Resources 
External tape drives are connected via the VHDCI connectors on the Virtual TapeServer server 
module. HVD tape drives must be connected via the Virtual TapeServer SCSI interface 
conversion module. LVD or Fibre Channel drives can be connected directly. 
Fibre Channel Tape Drives: Fibre Channel tape drives can be connected directly to the dual-
channel fiber controller included in some Virtual TapeServer 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. 










