Operating Rz- And Rf-Series Disk Drives; Rz- And Rf-Series Description; Fast Scsi - DEC 4000 600 series Owner's Manual

Operating RZ- and RF-Series Disk Drives

RZ- and RZ- and RF-series drives are fixed-media disk drives that store
RF-Series up to 2 gigabytes of information on a disk that remains fixed
Description
inside the drive. RZ-series drives are SCSI compatible; RF-series
drives are DSSI compatible.
Four of the five mass storage compartments in your system are
reserved for these fixed-media drives. (See Figure 5–1.)
Each of the four fixed-disk compartments in your system
can have a different configuration. Depending on the type
and number of drives inside a fixed-disk compartment, a
compartment's front panel will differ. Figure 5–2 and Figure 5–3
show the possible front panels for fixed-disk compartments.
Depending on the configuration you ordered, a mass storage

Fast SCSI

compartment in your system can support fast SCSI speed on
RZ-series drives. Fast SCSI speed is an optional mode of SCSI-2
that allows data transmission rates of up to 10 MB/s.
A compartment that allows fast SCSI speed looks physically
different than other compartments (see Figure 5–2). Buses in
fast SCSI compartments cannot be extended outside the system.
Operating RZ- and RF-Series Disk Drives
Operating Mass Storage Devices 5–5