What does it meant by specifying BLKSIZE=0 in DCB parameter

praneethgokul · New User Joined: 06 May 2005 Posts: 20 Location: Bangalore

Hi all,

1. What does it meant by specifying BLKSIZE=0 in DCB parameter?

2. How do we define parameters to be passed to a PROC ?

Thanks in advance

Rupesh.Kothari · Member of the Month Joined: 27 Apr 2005 Posts: 463

Hi,

mmwife · Super Moderator Joined: 30 May 2003 Posts: 1592

BLKSIZE=0 tells the system to calculate the optimal blksize for the d/s.

khamarutheen · Active Member Joined: 23 Aug 2005 Posts: 677 Location: NJ

Hi frnd,

BLKSIZE >>>Specifies the maximum length, in bytes, of a block.

The number of bytes that you specify for BLKSIZE depends on the device type and the record format for the data set. The maximum is 32760 for DASD datasets and 2,147,483,648 for tape

If you do not code BLKSIZE, the system can, under certain conditions, determine an optimum block size

and regarding passing parameters only v can pass the symbolic parameters to both the instream and catalog parameters..