Migrating data between storage units

Migrating data between storage units requires the use of Global Copy or IBM^® System Storage™ Metro Mirror. Perform this process to migrate data between storage units.

1. Establish paths between all Site A LSSs and Site B LSSs.
2. Establish all necessary volume pairs between the Site A storage units and the Site B storage units. You can use either the Global Copy or the IBM System Storage Metro Mirror feature.
3. Convert the pairs to IBM System Storage Metro Mirror after the bulk copy is complete if you use Global Copy.
4. Ensure that all remote mirror and copy volumes are in duplex state.
5. Quiesce the applications before you switch to the new volumes.
6. End all remote mirror and copy pairs across all storage units.
7. End all theremote mirror and copy paths from the Site A storage units to the Site B storage units.
8. Resume all applications that point to devices at the Site B storage units.