Difference between revisions of "VAXft series"
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| − | The '''VAXft series''' ('''VAX fault tolerant''') were a series of [[fault tolerant]] [[VAX]] computers produced by [[DEC]]. They used [[redundancy]] to produce reliable operation: units contained dual [[ | + | The '''VAXft series''' ('''VAX fault tolerant''') were a series of [[fault tolerant]] [[VAX]] computers produced by [[Digital Equipment Corporation|DEC]]. They used [[redundancy]] to produce reliable operation: units contained dual [[Central Processing Unit|CPUs]] and other components, mounted in separate [[backplane]]s in the [[cabinet]], with a 'crosslink cable' running between the CPUs. The cable allowed [[hardware]] in the two CPUs to check, on an [[instruction]]-by-instruction basis, that they were producing identical results. |
Some of the VAXft's fault tolerance features are implemented in [[software]], the [[VAXft System Services]] software, which is needed to support those features. | Some of the VAXft's fault tolerance features are implemented in [[software]], the [[VAXft System Services]] software, which is needed to support those features. | ||
Revision as of 04:18, 8 May 2024
The VAXft series (VAX fault tolerant) were a series of fault tolerant VAX computers produced by DEC. They used redundancy to produce reliable operation: units contained dual CPUs and other components, mounted in separate backplanes in the cabinet, with a 'crosslink cable' running between the CPUs. The cable allowed hardware in the two CPUs to check, on an instruction-by-instruction basis, that they were producing identical results.
Some of the VAXft's fault tolerance features are implemented in software, the VAXft System Services software, which is needed to support those features.
VAXft models included:
Further reading
- VAXft Systems System Technical Description (EK-VXFT1-TD; not online)
- VAXft Systems Guide to VAX Fault Tolerant Systems
- William F. Bruckert, Carlos Alonso, James M. Melvin, Verification of the First Fault-tolerant VAX System, Digital Technical Journal, Volume 3, Number 1, Winter 1991 (pp. 81-87 of the PDF)
External links
- VAXft Systems Owner's Manual (EK-VXFT1-OM.004)
- VAXft Systems Configuration Guide (EK-VXFTB-PG-002)
- VAXft Systems Mini-Reference Guide (EK-VXFT1-HR.003)
