Make sure your LOGRETAIN is ON. If not issue.

确保LOGRETAIN被设为ON，如果不是，请发出下面命令。

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You can turn on archive logging by setting LOGRETAIN to on.

通过将logretain设为ON，可以打开归档日志记录。

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If logretain is set to "no" and userexit is set to "no", logs are not retained.

如果logretain设置成“No”并且userexit也设置成“No”，就不会保留日志。

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