At 17:22 +0000 on 11/02/2010, Ted MacNEIL wrote about Re: How long
for SMF to switch:
>1.5 minutes to actually switch the dataset seems excessive.
Do you need the data right away?
For a batch-like process, 1.5 minutes, to me, does not seem to be
worth worrying about.
The delay in doing the switch (and thus the dump if you have an
IEFU29 Exit to automatically fire off the dump) is only one issue
with a delay in doing the switch. A more important issue is that the
data that will be written to the new SYS1.MANx dataset is queued in
memory until the dataset is available. This means that you have a
potential window of opportunity for data loss if the delay is
extended and you run out of memory for storing the records or if the
new file is not large enough to hold all the queued data (you want
multiple [ie: 3 or more] MANx datasets as well as large ones).
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