If you receive the following error message on your website, which means the table is crashed.
“Table “tablename” is marked as crashed and should be repaired”
The Mysql table consists of 3 files, .MYI, .MYD and .frm. The .MYI file contains the structure and results in the error message if something goes wrong with it. There are 3 ways to repair the table:
1) Login to your cPanel, goto “Mysql Databases” option and click “Repair DB” in front of the databases.
2) Login to your server, goto mysql directory /var/lib/mysql and execute the command: myisamchk -r dbname/tablename.MYI
3) Login to your server, goto Mysql prompt and execute the Mysql query: repair table tablename;
Anyone of the above 3 steps will repair the table and site will be back online.}