Thank you. I knew I was missing something. I just couldn't remember that "S". How many times has that bitten me...

But IEBGENER to FBS fixes it.

And I was thinking that what I had specified would handle a TSO user address space, unless it didn't have enough space for secondaries.... That's what SMS is for. :)

Steve Thompson


On 5/24/2023 2:46 PM, Tom Marchant wrote:
On Wed, 24 May 2023 11:35:19 -0400, Steve Thompson <[email protected]> wrote:

RECFM=F,LRECL=4160,BLKSIZE=0 (I think blocking works with dumps now)
Yes SYSMDUMP can be blocked. But if it is going to be blocked, RECFM must be 
FBS. RECFM=F will be unblocked.

And SPACE=(CYL,100,30) I think that should be able to hold the
whole dump.
Why such a small secondary allocation? That is a pretty small allocation for a 
SYSMDUMP, though it may be adequate for the OP's region size. When I create a 
SYSMDUMP in batch, and I do it several times a year,, I code 
(CYL,(300,500),RLSE). DCB parameters need not be specified, as they will be 
filled in properly by the system.


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