不建议把Oracle redo存放在SSD上

刘大，这个oracle文档是不是变更了，怎么没看到你的截图说的呢，反而说放在ssd上能减少延迟什么的，迷糊了If you have dedicated high availability storage technologies tuned for write then use those in accordance to the vendors instructions. For example, it is recommended to configure zpools for redo log files with a ZFS SLOG (Separate LOG). Adding a SLOG to a zpool dedicated to redo log files can reduce latency issues with log transactions. Also putting the SLOG on an SSD (Solid State Disk) will reduce redo log latency further. This will help improve the performance of synchronous writes. See: