图来源于https://github.com/jeremycole/innodb_diagrams
page 0,1,3 是预留的page
每256M都会有一个XDES
[root@dba-test-02 inno_space-main]# ./inno -f /data/mysql3307/data/musk/city.ibd -p 4 File path /data/mysql3307/data/musk/xxx.ibd path, page num 4 ==========================block========================== FIL Header: CheckSum: 2426195884 Page number: 4 Previous Page: 4294967295 Next Page: 5 Page LSN: 23747813612 Page Type: 17855 Flush LSN: 0
Index Header Number of Directory Slots: 46 Garbage Space: 0 Number of Records: 181 Max Trx id: 0 Page level: 0 Index ID: 245