自己用的mysql都是用MYISAM数据库，还没涉及到需要INNODB，因此打算直接不加载INNODB引擎。
在my.ini(linux下/etc/my.cnf)加上skip-innodb，就可以了。
我这样设置后，在linux下都没问题，今天在我本机winXP启动MYSQL，提示启动不起来。看下mysql目录的错误日志：
090613 10:15:27 [ERROR] Default storage engine (InnoDB) is not available 090613 10:15:27 [ERROR] Aborting 090613 10:15:27 [Note] C:\www\mysql\bin\mysqld-nt: Shutdown complete
估计是上次加了参数后，一直没启动起来。。。已经很久没用本机的mysql了。查了下，原来my.ini里有一句：default-storage-engine=INNODB，把默认的engine设为INNODB，而我又加了skip-innodb，怪不得启不来了。
将default-storage-engine改为MYISAM，MYSQL启动OK！
在skip-innodb下，data目录下的ibdata1,ib_logfile0,ib_logfile1这三个文件就不需要了，就可以删除。测试了下，在没加skip-innodb时，删除了这三个文件，启动时会自动创建这三个文件，日志如下：
InnoDB: The first specified data file .\ibdata1 did not exist: InnoDB: a new database to be created! 090613 10:19:37 InnoDB: Setting file .\ibdata1 size to 10 MB InnoDB: Database physically writes the file full: wait... 090613 10:19:37 InnoDB: Log file .\ib_logfile0 did not exist: new to be created InnoDB: Setting log file .\ib_logfile0 size to 24 MB InnoDB: Database physically writes the file full: wait... 090613 10:19:38 InnoDB: Log file .\ib_logfile1 did not exist: new to be created InnoDB: Setting log file .\ib_logfile1 size to 24 MB InnoDB: Database physically writes the file full: wait... InnoDB: Doublewrite buffer not found: creating new InnoDB: Doublewrite buffer created InnoDB: Creating foreign key constraint system tables InnoDB: Foreign key constraint system tables created 090613 10:19:39 InnoDB: Started; log sequence number 0 0 090613 10:19:39 [Note] C:\www\mysql\bin\mysqld-nt: ready for connections.
再删除这三个文件，加了skip-innodb后，启动日志：
090613 10:30:12 [Note] C:\www\mysql\bin\mysqld-nt: Normal shutdown 090613 10:30:12 [Note] C:\www\mysql\bin\mysqld-nt: Shutdown complete 090613 10:30:17 [Note] C:\www\mysql\bin\mysqld-nt: ready for connections. Version: '5.0.45' socket: '' port: 3306 Source distribution
那三个文件就不会自动产生了。
