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In IBM mainframes, a Cross-system Coupling Facility, or XCF, is a component of z/OS that manages communications between applications in a sysplex.[1] Applications may be on the same system or different systems.
Systems communicate using messages transported by one of two mechanisms:
Dedicated channel-to-channel links (CTC links).
Structures in a Coupling Facility, only available in Parallel Sysplex, not in base sysplex.
In a parallel sysplex decisions about which of these two transport mechanisms to use for routing a specific message are made dynamically.
Within a single z/OS system messages are transported using cross-memory services, rather than being routed through either of the physical transport mechanisms.
Applications join specific groups as individual members. On joining a group a member can send or receive messages. Individual messages are assigned to specific transport classes, based on the message's size. Each transport class owns input and output buffers. Routing decisions are made at the transport class level.
^Eade, Arndt; Frerking, Randy; Jackson, Rich; Mathis, Kellie; Redbooks, I. B. M. (2018-02-21). IBM CICS and the Coupling Facility: Beyond the Basics. IBM Redbooks. ISBN 978-0-7384-4304-1.
In IBM mainframes, a Cross-system Coupling Facility, or XCF, is a component of z/OS that manages communications between applications in a sysplex. Applications...
XCF may refer to: XCF (file format), file format of the Gimp image editing computer program IBMXCF, a component of the z/OS operating system The eXperimental...
allows use of XCF links instead of dedicated channels for GRS, and Dynamic RNLs Tivoli OPC – Hot standby support for the controller RACF (IBM's mainframe...
System/390 and IBM Z IBM mainframe computers. IBM developed MVS, along with OS/VS1 and SVS, as a successor to OS/360. It is unrelated to IBM's other mainframe...
resources such as processor, memory, disk, cache, workload, virtual storage, XCF and Coupling Facility. RMF is technically a priced (extra cost) feature of...
managed by the XCF (Cross System Coupling Facility) component. The GRS component utilizes the Messaging and Group Services provided by XCF to replace and...
the organisation may not even be aware that the data is being collected. IBM estimate that roughly 90 percent of data generated by sensors and analog-to-digital...
the text in quotes following the subject. GAL allows for cross systems(IBMXCF) queries to be issued by simple IF statements, without regard for the underlying...
Software". www.noodlesoft.com. Retrieved 2022-07-24. IBM. "Thales Vormetric Data Security Platform" (PDF). IBM. Gary Kessler's list of file signatures Online...
Used by many legacy Unix applications. XCFXCF, name derived from eXperimental Computing Facility The GIMP Team .xcf, .xcfbz2 (compressed), .xcfgz (compressed)...
18: 45–46. doi:10.3758/BF03200993. S2CID 62601552. IBM (2016). IBM SPSS Statistics 24 Algorithms. IBM. p. 168. Retrieved 31 August 2017. Berry, K. J.; Johnston...
application of the Fink package or any other distribution in order to support XCF. Microsoft Office Picture Manager and Paint.NET only support TIFF for viewing...
SPSS: A dialog box for Propensity Score Matching is available from the IBM SPSS Statistics menu (Data/Propensity Score Matching), and allows the user...
statsmodels package allow for simple, double and triple exponential smoothing. IBM SPSS includes Simple, Simple Seasonal, Holt's Linear Trend, Brown's Linear...
second") and D gets ranking number 4 ("fourth"). This method is called "Low" by IBM SPSS and "min" by the R programming language in their methods to handle ties...
S2CID 14133389. Chaitin, G.J. (1977). "Algorithmic information theory". IBM Journal of Research and Development. 21 (4): 350–9. doi:10.1147/rd.214.0350...
Retrieved 25 September 2011. "Electronic displays for information technology". IBM Journal of Research and Development Volume 44, Number 3, 2000. 10 November...
an automatic computer which inspired developers at Harvard University and IBM to design the first mechanical automatic-sequence-controlled calculator called...
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