昨天晚上server發生filesystem錯誤

重開後mariadb出現問題
到log去看時發現以下資訊

171002  8:51:09  InnoDB: cannot calculate statistics for table ABC/def
InnoDB: because the .ibd file is missing.  For help, please refer to
InnoDB: http://dev.mysql.com/doc/refman/5.5/en/innodb-troubleshooting.html
171002  8:51:09 [ERROR] MySQL is trying to open a table handle but the .ibd file for
table ABC/def does not exist.
Have you deleted the .ibd file from the database directory under
the MySQL datadir, or have you used DISCARD TABLESPACE?
See http://dev.mysql.com/doc/refman/5.5/en/innodb-troubleshooting.html
how you can resolve the problem.

到目錄去看時
def.idb這個檔真的不見了
查了一下
這個檔不見是沒辦法由目前的資料再產生的
只能recovery

找了一下備分
倒回去
目前看來正常
再觀察看看