MyISAM is the default storage engine of MySQL until version 5.5. This engine is an implementation of the well defined database storage ISAM architecture and has been available since MySQL 3.x.

Key features
• Non transactional
• Fast insert rate
• Btree based indexes
• Supports FULLTEXT index
• 16k data pages
• 4k index pages

Limitations
• Does not support transactions
• Table level locking on DML and DDL statements
• Not crash safe
• Relies on File System level cache to cache data pages

Important Parameters
[Read more...]