Offloading workloads when migrating data between storage units

Offloading workloads when migrating data between storage units requires the use of Global Copy or IBM^® System Storage™ Metro Mirror.

1. Establish paths between all Site A LSSs and Site B LSSs.
2. Establish all critical volume pairs between Site A storage units and Site B storage units, using either Global Copy or IBM System Storage Metro Mirror.
3. If you use Global Copy, convert the pairs to IBM System Storage Metro Mirror after the bulk copy is complete.
4. Ensure that all remote mirror and copy volumes are in duplex state at a point in time.
5. Issue database commands or file system commands to flush host buffers to disk, and quiesce the database or the file system.
6. Invoke FlashCopy for all volumes that are associated with the database.
7. Resume operations of the database or the file system.