Journal article
Geographically dispersed Parallel Sysplex architecture using optical wavelength-division multiplexing
Optical Engineering, v 37(12), pp 3229-3236
1998
Abstract
Since its introduction in 1994, the Parallel Sysplex architecture for mainframe computer systems has attracted a great deal of interest because of its high performance, continuous availability, scalability, and lower cost of ownership. Recently, it has become possible to interconnect the building blocks of a Parallel Sysplex (host processor, coupling facility, sysplex timer, and disk storage) at extended distances using fiber optic data links. In particular, optical wavelength-division multiplexing (WDM) has been an enabling technology for the extension of this architecture to a geographically dispersed Parallel Sysplex (GDPS). We describe the use of WDM in GDPS configurations, including distance limitations and typical performance considerations. Experimental results of testing a GDPS with WDM channel extensions up to 40 km are presented, and some test results on the IBM 9729 Optical Wavelength Division Multiplexer used in these configurations are also discussed. ©
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Details
- Title
- Geographically dispersed Parallel Sysplex architecture using optical wavelength-division multiplexing
- Creators
- Casimer DeCusatis - IBMW. Eric Hall - IBM Research - Thomas J. Watson Research CenterFrank Janniello - IBM Research - Thomas J. Watson Research CenterD Petersen - IBM (United States)
- Publication Details
- Optical Engineering, v 37(12), pp 3229-3236
- Publisher
- Society of Photo-Optical Instrumentation Engineers (SPIE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physical Therapy (and Rehabilitation Sciences)
- Web of Science ID
- WOS:000077518300019
- Scopus ID
- 2-s2.0-0343564099
- Other Identifier
- 991019173807404721
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- Web of Science research areas
- Optics