StorageTek 6 Jrndef, Journal Definition JRNDEF Control Statement, Syntax, Control Statement Name

JRNDEF

Journal Definition (JRNDEF) Control Statement

The JRNDEF control statement provides static information to the HSC. This information is used by the HSC at initialization and remains for the life of the HSC execution. Control information provided to the HSC by JRNDEF includes:

•the name for HSC journal data sets

Note: If your recovery technique involves using journals, both journal data sets are required. HSC will not initialize if only one journal data set is provided.

•the DASD volume where the specified journal resides

•the unitname for the dynamic allocation parameter list for journal allocation

•journal full options.

In a multi-host complex, a separate JRNDEF statement is required for each host. Refer to “CDS Definition (CDSDEF) Control Statement” on page 87 for information about defining CDS files.

Syntax
JRNDEF	DSN1(dataset.name)
	,VOL1(volser),UNIT1(unitname)
,DSN2(dataset.name)
	,VOL2(volser),UNIT2(unitname)	Abend
	,FULL(	Continue
,HOSTID(host-id)

Control Statement Name

JRNDEF initiates the control statement.

Parameters

DSNx

dataset.name is the name of an HSC journal data set. If journaling is active, each HSC host that comes active must find a JRNDEF statement in PARMLIB with a HOSTID that matches the system where it is running. Each JRNDEF statement must specify two distinct journal DSNs.

Journal data sets cannot be shared between hosts.

VOLx

optionally, volser is the volume serial number of the DASD volume where the specified journal resides. The VOL parameter must be specified in VM.

92VM/HSC 6.0 System Programmer’s Guide

1st ed., 6/30/04 - 312579601