Question & Answer
Question
The message IST435I UNABLE TO RECORD ON TUNSTATS FILE, RETURN CODE = 40 appeared on the system operator console, indicating that VTAM encountered a problem attempting to collect requested tuning statistics.
Answer
z/OS Communications Server records VTAM tuning statistics within the System Management Facility (SMF). SMF's repository data set has filled to capacity.
Transfer the existing SMF data to an archival device. Clear the SMF repository data set so that additional data can be collected.
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Product Synonym
ZOSCS COMMSERVER
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Document Information
Modified date:
15 April 2015
UID
dwa1180268