Sequoia Computer Systems?

[Christian Corti]

On Wed, 9 Mar 2016, Jay West wrote:
> Anyone have any pictures, datasheets, or other ephemera related to Sequoia
> Systems line of fault tolerant systems?

That's what I found in the Computer Review No. 1 from 1987, page 351:

                         SEQUOIA SYSTEMS:  SEQUOIA              POWER: 50.0 MIPS

INTRODUCED IN 1984, THE SEQUOIA SYSTEM PROVIDES FAULT-TOLERANCE FOR COMMERCIAL,
ON-LINE TRANSACTION PROCESSING. REDUNDANT MC68010 PROCESSORS IN A TIGHTLY
COUPLED ARCHITECTURE CAN BE CONFIGURED TO MINI-THROUGH LARGE MAINFRAME PER-
FORMANCE. 2 TO 64 CPU'S, EACH USING 128K CACHE, 4MB MAIN MEMORY AND 1 OR 2 I/O
PROCESSORS, MAY BE COMBINED MODULARLY. PROCESSORS ALL RUN A SINGLE COPY OF THE
OS AND ARE CHECKED BY REDUNDANT COMPARATORS 10M TIMES/SEC. DUAL, SEGMENTED 40-
BIT WIDE BUSES AND AUTOLOAD BALANCING OPTIMIZE THE UNIX-BASED SYSTEM FOR TRANS-
ACTION MANAGEMENT.I/O CHANNEL PROCESSORS HAVE 512K MEMORY & FOUR 4KB BUFFERS EA.

APPLICATIONS: BUSINESS

COMPUTER                              PERIPHERALS
    WORD SIZE: 16/32 BITS                 REMOVABLE DISK:   300MB
    MEMORY: 4096 TO 262144KB              FIXED DISK:       404/640mb
    MEMORY CYCLE TIME: 100NS              FLEXIBLE DISK:
    CACHE MEMORY: 128KB                   MAGNETIC TAPE:    6250/1600 GCR
    I/O TRANSFER RATE: 80MB/SEC           LINE PRINTER:     600 LPM
    USERS PER SYSTEM:  512                SERIAL PRINTER:
    VIRTUAL MEMORY: YES                   DISPLAY TERMINAL: ASCII
    FLOATING POINT:                       MULTIPLEXOR:
    MEMORY ERROR CORRECT: STD             OTHER: 6250BPI GCR MAG TAPE DRIVE

SYSTEMS SOFTWARE                      I/O COMMUNICATIONS
  * REAL TIME MNTR: TRM                   ASYNCHRONOUS: STD
    BATCH MONITOR                         BISYNCHRONOUS: STD
  * DATA BASE SYS: INGRES (RELATIONAL)    DIRECT MEMORY ACCESS:
    OPERATING SYSTEM: UNIX V, UNIX 4.2B   OTHER: IEEE-796 (MULTIBUS); RS232;

PROGRAMMING LANGUAGES                 MARKETING
    BASIC        * PASCAL                 COMPUTER:
  * COBOL          APL                    MAINTENANCE:
  * FORTRAN        RPG                    MAIN MARKET: END USER
    OTHER:                                SYSTEM: $290000, 4096KB

SYSTEM PRICE DESCRIPTION
BASIC SYSTEM FEATURES 2 PROCESSING ELEMENTS, 2.5 MIPS, TWO 2MB MEMORY ELEMENTS,
2 I/O ELEMENTS, SYSTEM CABINET W/ DUAL SYSTEMS BUS SEGMENTS, PERIPHERAL CABINET
W/ 2 MULTIBUSES, 404MB DISK, COMMUNICA. CONTROLLER, OPERATING SYS & C COMPILER.


That's it...

Christian