Articles by Rui Miguel Feio

FAQ
Glossary

Coupling Facility (CF)

22nd February 2011 Rui Miguel Feio
A coupling facility is a special logical partition that runs the coupling facility control code (CFCC) and provides high-speed caching, list processing, and locking functions in a sysplex. HCD enables you to specify whether a logical partition can be a coupling facility, operating system, or either on certain processors. You […]
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Glossary

External Time Reference (ETR)

21st February 2011 Rui Miguel Feio
External Time Reference hardware facility (ETR) is the generic name for IBM Sysplex Timer. The ETR architecture provides the means of synchronizing TOD clocks in different CPCs with a centralized time reference, which in turn can be set accurately on the basis of UTC time standard (External Time Source). The […]
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Glossary

Cross-System Coupling Facility (XCF)

21st February 2011 Rui Miguel Feio
The cross-system coupling facility (XCF) component of z/OS manages communications between applications in a sysplex. XCF services allow authorized programs in a sysplex to communicate with programs on the same MVS system or other MVS systems. If a system fails, XCF services also provide the capability for batch jobs and […]
JCL

Create a History Data Set from Log Data Recorded on the Logrec Log Stream

21st February 2011 Rui Miguel Feio
The following JCL creates a history data set from log data recorded on the Logrec log stream //LOGRECHS JOB,MSGLEVEL=(1,1),MSGCLASS=X,NOTIFY=&SYSUID //EREPDALY EXEC  PGM=IFCEREP1,PARM=(‘HIST,ACC=Y,SYSUM’) //ACCIN    DD DSN=SYS1.SYSPLEX.LOGREC, //            SUBSYS=(LOGR,IFBSEXIT,,’DEVICESTATS,LASTRUN’), //            DCB=(RECFM=VB,BLKSIZE=4000) //ACCDEV   DD DSN=MVS.LOGREC.LGSTREAM.HISTORY, //            DISP=(NEW,CATLG), //            DCB=(RECFM=VB,BLKSIZE=4000), //            UNIT=SYSDA,SPACE=(CYL,(25,5)) //SERLOG   DD DUMMY //DIRECTWK DD UNIT=SYSDA,SPACE=(CYL,15,,CONTIG) //TOURIST  DD SYSOUT=A,DCB=BLKSIZE=133 //EREPPT   DD SYSOUT=A,DCB=BLKSIZE=133 […]
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MVS

EREP Control Statements

15th February 2011 Rui Miguel Feio
The following control statements are used to give EREP information about your configuration and set up the overall criteria for the way EREP creates the report: Control Description CONTROLLER Tells EREP to combine the error records associated with this particular control unit and its attached devices. DASDID Tells EREP that […]