A reasonable start is SMF 78-2 (RMF Virtual Storage report) which will at
least give you the dynamics and the key - both for CSA and ECSA. For one
you need to understand if this is a regular occurrence or just a rarity.
Cheers, Martin
Martin Packer,
Mainframe Performance Consultant, zChampion
W
Hi All,
My RMF workflow/exception monitorning Snap Shot showed the below
information.
-- Exceptions
-
Name ReasonCritical val. Possible cause or
action
*ECSA* SECS% > 70 73.3 % System ECSA usage 73 %.
Ver
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