Archive log size summaryAvaliable Undo tbs spaceDataGuard relatedDatapump Jobsget datafile currentSize/smallestSize/size can reducedMost redoquery Segment_name from FILE_ID and BLOCK_IDRMAN statusTBS usage容器当前活跃Session的性能统计信息数据文件每次增长大小查找全表扫描的表监控索引使用频率