VSAM secondary extents.
Posted: Fri Feb 26, 2016 1:21 pm
I seek a clarification on the below job. This job defines a cluster:= like this:
When a download job run, that populates this cluster and it goes to allocate additional extents, it is allocating 540 trks. I thought it would allocate the secondary allocation of 9000 cylinders. What wrong did I guess? Please help.
Code: Select all
//CRTECLUS EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=*
//SYSIN DD *
DEFINE -
CLUSTER -
( -
NAME(THE.VSAM.CLUSTER) -
LINEAR -
CYL(9000 9000) -
DATACLASS(DBAGDC) -
VOLUMES(Z3X170 Z2D171) -
SHAREOPTIONS(2,3) -
)
/* When a download job run, that populates this cluster and it goes to allocate additional extents, it is allocating 540 trks. I thought it would allocate the secondary allocation of 9000 cylinders. What wrong did I guess? Please help.