[comp.newprod] High Performance Disks for Sun Workstations

bdm@ciprico.mn.org (Bill D. Moren) (09/18/87)

                 RIMFIRE 3200/3400 SUN BOOT KIT

     Ciprico's Rimfire 3200/3400 Sun Boot Kit allows users of Sun 
Workstations to boot their systems directly from any SMD or ESDI 
type disk drive using a Ciprico disk controller.  The Kit 
provides all the hardware, software, and documentation necessary 
to add boot capability to systems using Rimfire VMEbus disk 
controllers.

     * Allows Booting Sun          * Kit Includes Boot PROM,
       Systems Directly from         Installation Tape, and 
       Ciprico Disk Controllers      Documentation     

     * Compatible With SUN 3/110,  * All Necessary Boot and
       3/160, 3/180, 3/260, and      Utility Programs Included
       3/280 Systems

     * Compatible With Any ESDI    * Can Be Installed on Systems
       or SMD Type Disk Drives       Already Using a Rimfire
                                     Controller


     The Kit was developed expressly for Ciprico by Sun 
Microsystems.  Compatible with most Series 3 Sun systems, it 
provides users with maximum flexibility when integrating their 
disk subsystems.  For the greatest performance, any high speed 
SMD type disk drive controlled by a Rimfire 3200 board will 
provide a significant improvement in performance over comparable 
offerings from Sun, at a substantial cost savings. 

     Superior performance is the result of advanced data 
management techniques which are integral parts of the Rimfire 
controllers.  Cross-track lookahead caching is an example of one 
of these techniques.  This technique pre-reads disk data into the 
board's internal cache memory, anticipating sequential access of 
the disk by the operating system.  Subsequent requests are then 
satisfied directly from controller memory, eliminating mechanical 
disk access latencies.  Other advanced techniques including 
command queuing, overlapped seeks, seek sorting, and command 
combining also contribute to performance improvements.

     For cost sensitive applications, a Rimfire 3400 disk 
controller and cost effective ESDI disk drive provide excellent 
performance while minimizing the cost per megabyte for disk 
expansion.  Software compatible with the Rimfire 3200 controller, 
converting from ESDI to SMD type disks does not require software 
changes.

     Rimfire controllers are easily integrated into Sun 
Workstations using triple high VME-to-VME adapter cards.  These 
adapters are available from Sun Microsystems and other third 
party vendors, including versions with appropriate cabling from 
the front panel to the controller and to the disk drives.  For 
more information on these adapters contact Ciprico.

     The Sun Boot Kit includes the Rimfire 3200/3400 driver 
(including documentation) for the BSD 4.2 version of the UNIX 
operating system.  The driver is also available separately in 
source code form for those applications requiring modifications 
to the standard driver.

     The Sun Boot Kit is available through authorized Ciprico 
distributors.  The Kit is priced at $175.  To find the nearest 
authorized distributor, or to get more information on the Kit or 
any of Ciprico's VMEbus, Multibus I, or Multibus II mass storage 
controllers, contact Bill Moren at Ciprico:

                          Ciprico Inc.
                        2955 Xenium Lane
                       Plymouth, MN 55441
                         (612) 559-2034

                             or at:

                        bdm@ciprico.mn.org