Understanding Autoloader Features; Scsi Requirements - HP StorageWorks vs80 User Manual

Understanding Autoloader Features

SCSI Requirements

Chapter 1
The autoloader is a SCSI-2 Low-Voltage Differential (LVD) data storage device
that incorporates a Benchmark Storage Innovations DLT vs80 tape drive and
eight tape slots. The autoloader operates as a single SCSI device with two
Logical Unit Numbers (LUNs), one for the tape drive (0) and the other for the
autoloader robotics (1). The autoloader uses up to eight DLTtape IV data
cartridges, providing a maximum formatted capacity of 640 Gigabytes and a
sustained data transfer rate as high as 360 MB per minute, assuming a 2:1
compression ratio.
The autoloader is compatible with most operating systems and environments
that support the SCSI interface, but requires either direct support from the
operating system or a compatible backup application to take full advantage of
its many features.
The autoloader incorporates a wide SCSI-2, Low-Voltage Differential (LVD)
SCSI bus, but may also be attached to a Single-Ended (SE) SCSI bus. Make
sure your SCSI host adapter or controller supports these standards. If you
connect the autoloader to an SE SCSI bus or if there are SE devices attached to
the same SCSI bus, the autoloader's performance is limited to the maximum
data transfer speed and maximum cable lengths of the SE bus. The autoloader
is NOT compatible with a standard differential (Diff) SCSI bus, also know as
High-Voltage Differential (HVD) SCSI. The autoloader is compatible with a
narrow (50-pin) SCSI bus using a customer-supplied 68-pin to 50-pin adapter
that terminates the unused 18 pins. These adapters are sometimes labeled
high-byte termination.
Installing the Autoloader 9