On 12/22/2017 7:32 AM, Gilson Cesar de Oliveira wrote:
Dear list:
We are facing some alerts related to shortage of Console Message Buffers due
to an automation that change and route sysouts from one site to another. This
automation, when there are a lot of sysouts, generates a lot of HASP686
messages.
Haha! When I first saw this post, I was stunned that anyone could run
out of Channel Measurement Blocks (CMBs)!
The JES2 $HASP050 message indicates a *temporary* condition that will
eventually clear itself. Having said that, storage is cheap these days
and 270 is considered a very small number. Personally, I would raise
that to whatever value you need to avoid shortages.
Despite BUFNUM=100 being the default, IBM recommends you "[start with]
BUFNUM=1000 as a minimum starting value and increase the value using the
$T CONDEF command if the $HASP050 message indicates a shortage. Because
console messages must wait for buffers, too small a value slows the system."
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zos.v2r3.hasa400/has2u60047.htm
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