You can use the administrative console to enable and disable logging for storage. You can store logs in the same bucket where logging is enabled, or you can create a new bucket in the same region to store logs.
The logging function in KS3 is not turned on by default. You can turn it on manually and set the storage location manually.
The log file format is: ks3log_bucket name_yyyyMM dd.log
The log setting function is located under the space setting menu：