SYS1.PARMLIB changes for DFSMStvs

Table 1 lists the changes to the IGDSMSxx member of SYS1.PARMLIB for DFSMStvs.

Table 1. IGDSMSxx changes in SYS1.PARMLIB. This table lists the changes to the IGDSMSxx member of SYS1.PARMLIB for DFSMStvs.
Member name	Release	Description	Related support
IGDSMSxx	z/OS V1R4 or above.	New parameter: AKP Specifies the activity keypoint trigger value, which is the number of logging operations between taking keypoints, for one or more DFSMStvs instances.	z/OS MVS Initialization and Tuning Reference and z/OS DFSMStvs Planning and Operating Guide
		New parameter: LOG_OF_LOGS Specifies the log stream to use as the log of logs.
		New parameter: MAXLOCKS Specifies the maximum number of unique lock requests that a single unit of recovery can make.
		New parameter: QTIMEOUT Specifies the quiesce exit timeout value.
		Changed parameter: RLSTMOUT Specifies a timeout value for DFSMStvs requests for required locks.
		New parameter: SYSNAME Specifies the name or names of the systems on which DFSMStvs instances are to run.
		New parameter: TVSNAME Specifies the identifier or identifiers of DFSMStvs instances that are to run in the sysplex.
		New parameter: TV_START_TYPE Specifies the type of start that each instance of DFSMStvs is to perform.