CA Dynam for VSE User Guide

Direct Access File Independence Facility (VCKD)
END
Specifies utility end statement.
Example
Formats an emulated 3340 track.
// JOB VCKDCLDK CLEAR DISK
// ASSGN SYS012,300 FBA DISK DRIVE
// DLBL UOUT,'FBA.DA.FILE',2099/365,DA
// EXTENT SYS012,FBA300,1,0,200,1500 ALLOCATE 1500 FBA BLOCKS
// EXEC VCKDCLDK
// UCL B=(K=0,D=2552),X'00',ON,E=(3340)
// END
/*
/&
Disk File Analyzer (VCKDANAL)
The VCKD disk analyzer program (VCKDANAL) reads the first track of a file
and determines the required number of FBA blocks to allocate for each track.
In addition, all extents are read to calculate the total number of FBA blocks
required for the complete file. VCKD does not have to be enabled in order for
VCKDANAL to analyze the CKD file. However, if the CKD disks are connected to
another CPU, then VCKDANAL must be installed on that system.
If you include MAXSIZE=, precede it with a comma.
Control Statement Format
ANAL=xxxx[,MAXSIZE=nnnnn]
ANAL=xxxx Specifies the device type (xxxx) to be analyzed. Valid entries are 2311, 2314,
3330, 3340 and 3350.
MAXSIZE=nnnnn
Optional operand. Specifies the maximum record size (nnnnn) for variablelength
and undefined records within the file.
JCL Requirements
File name
Device
CKDDISK is the DLBL name for the DA file on the CKD disk.
The EXTENT statement can reflect any SYS number for CKDDISK.
Chapter 6: Controlling File Independence 6–51