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Document:	VAXft Systems, Configuring the Model 810
Order Number:	EK-VX810-CG
Revision:	A01
Pages:	16
Original Filename:

OCR Text

VAXft Systems
Configuring the Model 810
Part Number: EK-VX810-CG.A01

Digital Equipment Corporation
Maynard, Massachusetts

First Printing, June 1993
The information in this document is subject to change
without notice and should not be construed as a
commitment by Digital Equipment Corporation. Digital
Equipment Corporation assumes no responsibility for any
errors that may appear in this document.
No responsibility is assumed for the use or reliability of
software on equipment that is not supplied by Digital
Equipment Corporation or its affiliated companies.
Restricted Rights: Use, duplication, or disclosure by the
U.S. Government is subject to restrictions as set forth in
subparagraph (c)(1)(ii) of the Rights in Technical Data and
Computer Software clause at DFARS 252.227-7013.
© Digital Equipment Corporation 1993.
All Rights Reserved.
Printed in U.S.A.
FCC NOTICE: This equipment generates, uses, and may
emit radio frequency energy. It has been tested and found
to comply with the limits for a Class A computing device
pursuant to Subpart J of Part 15 of FCC rules for operation
in a commercial environment. This equipment, when
operated in a residential area, may cause interference to
radio/TV communications. In such event the user (owner),
at his own expense, may be required to take corrective
measures.
The following are trademarks of Digital Equipment
Corporation: OpenVMS, ThinWire, VAX, VAX DOCUMENT,
VAXft, VMS and the Digital logo.
This document is available on CDROM.

This document was prepared using VAX DOCUMENT,
Version 2.1.

VAXft Model 810 Systems
The VAXft Model 810 system is the second generation
of Digital’s fault tolerant systems. Earlier VAXft
systems include the Models 110, 310, 410, 610, and
612.
Hardware Features
The VAXft Model 810 has a VAX CPU that provides
30 VUPs of processing power. (One VUP equals the
processing power of a VAX–11/780 system.) With
speeds up to six times faster than the Model 610,
the Model 810 moves Digital into the forefront of the
fault-tolerant market.
In addition, the Model 810 system has an I/O
Attachment Module. The ATM is a separate VAX
processor that handles I/O interrupts from the
console terminal and the DSSI and Ethernet interface
modules. The DIMs and EIMs make the bus type
transparent to the I/O processor.
The VAXft Model 810 system also has the following
features:
•

Fully redundant hardware
One of each type of element in the system is
always available.

•

No single point of hardware failure
No failure of a single hardware element is
capable of bringing down the entire system.

•

No single point of repair
All repairs can be made without disrupting
running applications.

•

Uninterruptible Power Supply (UPS)
Power outages of short duration, brownouts,
and power fluctuations, the most common
environmental causes of computer failures, do
not affect VAXft systems.

•

Self-checking checkers
These checkers ensure that system integrity is
not compromised if a fault occurs in the checking
logic.

Software Features
The VAXft Model 810 supports:
•

OpenVMS Operating System Version 5.5-2HF
The multitude of OpenVMS layered products
and OpenVMS applications can be run on VAXft
systems without modification or recompiling. In
addition, little additional operator training is
needed for VAXft systems.

•

OpenVMS Volume Shadowing Phase II
OpenVMS Volume Shadowing enables all disks,
including the system disk, to be grouped into a
shadow set of two or three disks. The same data
is written to all disks in the set to ensure that
the loss of a disk drive does not affect the ability
of an application to run.

•

VAXft System Services Version 2.0
Features of VAXft System Services software
include support for the following capabilities:

•

Automatic failover of hardware

•

Hardware fault isolation and recovery

•

Configuration management of I/O components

•

DCL commands to start, stop, and show
zones

•

Tools and utilities to manage the system

VAXft Model 810 Configurations
There are four VAXft Model 810 system configurations:
•

Single Cabinet Entry System

•

Single Cabinet Packaged System

•

Dual Cabinet Packaged System

•

Dual Cabinet Advantage Server System

Each system includes many of the same components;
the common components included in each zone in
the system cabinet are described in Table 1. In all
systems, both zones must be configured identically,
including memory and disks.
Table 1 Components in the System Cabinet
Component

Description

KA560-AA

VAX CPU; One included per zone;
memory is attached to the CPU

MS560-AA

32 MB memory pair; up to a maximum
of four allowed

MS560-BA

64 MB memory pair; up to a maximum
of four allowed

KD560-AA

I/O Attachment Module; one included
per zone

KDXRA-AB

Ethernet interface module pair; one to
four per system

KDXDA-AB

DSSI interface module pair; two to
six per system; maximum of four total
Ethernet and DSSI interface module
pairs per system

RF35-HA

850 MB in-zone disk; one per zone
comes with the single cabinet
packaged system; optional with other
systems; up to six allowed

(continued on next page)

Table 1 (Cont.) Components in the System Cabinet
Component

Description

CK-KDXDA-RA

DSSI cabinet kit for in-zone disks
(comes with the single cabinet
packaged system; optional with other
systems unless in-zone disks are
present)

Some components come with a system, but are not
inside either cabinet. They are shown in Table 2.
For example, a console terminal is required for each
zone. For single cabinet systems, a table-top tape is
available.
Table 2 Optional Components Outside the Cabinets
Component

Description

TF85-TA

2.6 GB table-top cartridge tape

4N-AEAAH

One 3.6 KVA floor-standing UPS per zone1

VT420

One console terminal is required per zone

1 For fault tolerant operation, a UPS is required for each zone;
however the recommended UPS is optional. A non-Digital UPS must
transition within 10 milliseconds of a power failure to protect VAXft
processing continuity and to ensure against any lost work.

Two of the Model 810 system configurations come
with an expansion cabinet as well as the system
cabinet. In addition, the two single cabinet
configurations can be upgraded to include an
expansion cabinet. Disks and tapes can be added
as needed to the expansion cabinet. The components
that are available in the expansion cabinet are listed
in Table 3.

Table 3 Components in the Expansion Cabinet
Component

Description

SF73-HK

4 GB half-rack storage array with two RF73

SF73-JK

8 GB half-rack storage array with four RF73

SF73-UK

4 GB (two RF73) upgrade kit for SF73-HK

SF35-BK

1.7 GB half-rack storage array with two RF35

SF35-HK

5.1 GB half-rack storage array with six RF35

SF35-JK

10.2 GB half-rack storage array with 12 RF35

SF35-UK

0.85 GB RF35 disk and upgrade kit for SF35BK/HK

TF85C-BA

2.6 GB cartridge tape

TF857-AA

18.2 GB magazine tape subsystem

The four VAXft Model 810 system configurations
are described in the next two sections. With each
description is a drawing of the system. In the
drawings, slots that are not referenced in the
associated tables contain various cooling and power
modules that are included with every system.
Although many cables, such as power and DSSI,
connect modules within the system, only the
Crosslink cable is shown in the drawings.

Single Cabinet Systems
Two single cabinet VAXft Model 810 systems are
available, an entry system and a packaged system.
The components for both single cabinet systems are
given in Table 4 and shown in Figure 1. Both single
cabinet systems can be upgraded to a dual cabinet
system with an expansion cabinet.

Table 4 Components for Single Cabinet Systems
Item

Component

Description

KA560-AA CPU
MS560-AA/BA
Memory

Included; one per zone with:
one MS560-AA included in
entry system; one MS560-BA
included in packaged system;
maximum of 256 MB memory
allowed

KD560-AA I/O ATM

Included; one per zone

Drawer containing
RF35-HA Disks

One system disk per zone
included in packaged system;
maximum six disks per zone

Zone Control Panel

System indicators and zone
control switches

KDXDA-AB DSSI
Interface Module
pair

One included per zone; one
per zone can be added;
maximum six devices per
DSSI interface module per
zone

KDXRA-AB
Ethernet Interface
Module pair

One included per system;
maximum four per system;
maximum four total Ethernet
and DSSI interface module
pairs per zone

Crosslink Module

Module responsible for the
interconnection between the
two zones

Crosslink Cable

Connects Zone A to Zone
B through the Crosslink
modules

TF85-TA Tape Drive
(not shown)

Optional; maximum one per
zone; if tape is included, one
less disk allowed

4N-AEAAH UPS
(not shown)

Optional; however, fault
tolerant operation requires
UPS

VT420 (not shown)

Included, one per zone

Figure 1 Single Cabinet System
Front

Rear

ZONE
A

ZONE
B

System Cabinet

System Cabinet
MR−0039−93RAGS

Dual Cabinet Systems
Two expanded VAXft Model 810 systems are
available, a packaged system and an advantage
server system. The systems differ only in that the
advantage server comes with a tape and a NAS
400 software license. The components for both dual
cabinet systems are given in Table 5 and shown in
Figures 2 and 3.

Table 5 Components for Dual Cabinet Systems
Item

Component

Description

KA560-AA CPU
MS560-AA/BA
Memory

Included; one per zone with:
one MS560-BA included;
maximum of 256 MB memory
allowed

KD560-AA I/O ATM

Included; one per zone

Drawer containing
RF35-HA Disks

Optional; maximum six

Zone Control Panel

System indicators and zone
control switches

SF35 with RF35
Disks and/or
SF73 with RF73
disks

One SF35-BK with two disks
included; maximum of:
36 RF35 disks
28 RF73 disks
10 of any combination of SFs1
8 of any combination of SFs
and 2 TFs

TF85C-BA
Cartridge Tape

Optional; maximum two, or
one plus one TF857-AA per
zone; one fewer SF is allowed
for each TF

TF857-AA Magazine
Tape Subsystem

Optional; maximum two, or
one plus one TF85C-BA per
zone; one fewer SF is allowed
for each TF

KDXDA-AB DSSI
Interface Module
pair

One included per zone;
maximum three; maximum
six devices per DSSI interface
module; maximum four total
Ethernet and DSSI interface
module pairs

KDXRA-AB
Ethernet Interface
Module pair

One included per zone;
maximum two; maximum
four total Ethernet and DSSI
interface module pairs

1 One fewer storage array is allowed in the expansion cabinet if disks
are in the system cabinet.

(continued on next page)

Table 5 (Cont.) Components for Dual Cabinet
Systems
Item

Component

Description

Crosslink Module

Module responsible for the
interconnection between the
two zones

Crosslink Cable

Connects Zone A to Zone
B through the Crosslink
modules

4N-AEAAH Floor
Standing UPS (not
shown)

Optional; however, fault
tolerant operation requires
UPS

VT420 Console
Terminal (not
shown)

Included, one per zone

Figure 2 Dual Cabinet System (Front)
ZONE A

ZONE B

Front

ZONE A

ZONE B

Expansion Cabinet

System Cabinet
MR−0040−93RAGS

Figure 3 Dual Cabinet System (Rear)
ZONE B

Rear

ZONE A

ZONE B
10

System Cabinet

Expansion Cabinet
MR−0041−93RAGS

Configuring Ethernet Connections
Ethernet connections enable communications with
other computers in a LAN. The VAXft Model 810
system supports either standard or ThinWire
redundant connections to a single Ethernet or
multiple Ethernets. Figure 4 shows redundant
connections to a single Ethernet, while Figure 5
shows redundant connections to multiple Ethernets.
Up to four Ethernet interfaces per zone can be
configured. Note that both zones must be connected
to the same physical Ethernet segment. They cannot
be separated by LANbridges, repeaters, or any other
device that would separate the physical segment
between the zone connections.

Figure 4 Model 810 Connected to a Single Ethernet

Terminal
Server
Ethernet

VAXft

MR−0042−93RAGS

Figure 5 Model 810 Connected to Dual Ethernets

Terminal
Server

Terminal
Server
Ethernet

VAXft

MR−0043−93RAGS