title: Extending innodb_data_file_path in mysql
body: <p>Suppose a mysql 5.5 server uses the following configuration for storing innodb data</p>
  
  <pre>
  innodb_data_file_path =  /var/lib/mysql/ibdata:100G;/disk2/mysql/ibdata2:1000M:autoextend
  </pre>
  
  <p>at some point later in time, if the database has already been populated for a while.  I wish to add an extra path in this innodb_data_file_path because I'm running out of disks space and a new disk is added.  Is this possible?  How can it be done?
  Would something like the following work?</p>
  
  <pre>
  innodb_data_file_path =  /var/lib/mysql/ibdata:100G;/disk2/mysql/ibdata2:XXXG;/disk3/mysql/ibdata3:1000M:autoextend
  </pre>