Compaq VAX 7000 Guía de instalación descargar pdf (Pagina 18)

4.1 Unsupported XMI options

The following XMI options are not supported on DEC/VAX 7000/10000 systems. Be careful

if upgrading from a 6000 to a 7000, you cannot tranfer these modules.

Option Adapter type Module Comment

CIXCD CI T2080 Use CIXCD-AC (T2080-YA)

DWMBA BI T2012 Old BI adapter, use DWMBB

DWMUA Unibus Mythical XMI to Unibus adapter?

KFMSA-AA DSSI T2036 Old DSSI adapter, use KFMSA-BA

4.2 BI Supported Options

The following options are currently supported on VAX7000/10000 systems running Open-

VMS V6+. The BI is not supported on DEC7000/10000 systems.

• DMB32, async. and printer ports only

• DRB32

• KRB01 - special encryption module, as used by Camelot

• Nothin’ else!

4.3 Unibus Support

Don’t even think about it!

5 Futurebus+

5.1 Concept

The Futurebus+ is "a high-performance, asynchronous bus designed by the IEEE 896 com-

mittee to allow scalable, technology-independent protocols for many generations of computer

architectures". This means it’s truly open and not based on any particular vendor’s existing

products. It has the following features:

• High throughput: 750 MB/sec for 64-bit mode, 1.5 GB/sec for 128-bit mode

• 64 bit address space

• Technology, architecture and vendor independence

• Data Integrity ensured by superior electrical characteristics

• Wide industry support

To support all this openness, many different aspects of bus protocol have to be deﬁned. To

simplify matters and ensure compatibility between different products, these deﬁnitions are

grouped into "proﬁles". The following proﬁles are currently speciﬁed:

Proﬁle A: The general purpose, cache coherent CPU environment. (IE: A system bus).

Proﬁle B: The I/O bus noncoherent environment. (IE: An I/O bus).

Proﬁle F: A bus for high-performance packet-mode processors.

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Compaq VAX 7000 Guía de instalación Pagina 18