VAXft

The VAXft was a family of fault-tolerant minicomputers developed and manufactured by Digital Equipment Corporation (DEC) using processors implementing the VAX instruction set architecture (ISA).

Two layered software products, VAXft System Services and VMS Volume Shadowing, were required to support the fault-tolerant features of the VAXft and for the redundancy of data stored on hard disk drives.

Each zone was a fully functional computer, capable of running an operating system, and was identical to the other in hardware configuration.

In August 1990, slow sales prompted DEC to reduce the US price of the Model 310 to US$168,000.

It used the KA520 CPU module containing a 16.67 MHz (60 ns cycle time) CVAX+ chip set with 32 KB of external secondary cache.

The rackmount configuration was a pedestal without the plastic covers or casters that fitted in a standard 19-inch RETMA cabinet.

Originally supposed to ship in June or July 1991, it was delayed until September 1991, with the reason given by DEC being that it wanted to tune a new release of VMS for the system.

Originally supposed to ship in June or July 1991, it was delayed until September 1991, with the reason given by DEC being that it wanted to tune a new release of VMS for the system.

The cabinet had more storage capacity than the systems packaged in pedestals, and for this reason the Model 610 was intended for data centers.

Originally supposed to ship in June or July 1991, it was delayed until September 1991, with the reason given by DEC being that it wanted to tune a new release of VMS for the system.

An optional expansion cabinet could be connected to the system, in addition to two uninterruptible power supplies, one for each zone.

[7] It used the KA560-AA CPU module, which contained two 83.33 MHz (12 ns cycle time) NVAX+ microprocessors with 512 KB of B-cache (L2 cache).