Advanced Topics › Control and Checkpoint File Considerations › How You Migrate to a New Control File › Migrate to a Virtual Control File

Migrate to a Virtual Control File

You can use the MIGRATE command to migrate from a physical control file to a virtual control file. Virtual control file communication is available if there is an active, fully connected, eligible master system in your MIMplex.

To migrate to a virtual control file:

1. Issue the following command to view the list of eligible master systems:

   DISPLAY GLOBALVALUE
   

2. Issue the following command to migrate to using a virtual control file:

   MIGRATE MASTER=sysid
   

   sysid

   Specifies the system ID (sysid) of the new master system as specified on a DEFSYS statement.

To migrate to the next preferred master system

Issue the following command:

MIGRATE MASTER