Exadata X6 1/4 HC配置，在DB 12.2上创建1个1T表空间所用时间不超过22s。想知道你的IO性能好不好，用这个值做个参考吧。
SQL> create tablespace test01 datafile '+DATA' size 1T; Tablespace created. Elapsed: 00:00:21.79 SQL>
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