(2111) Offloading process

Offloading is a process of archiving data via OutBoard DataTiering.

Every process has three phases:

1. Copy – data is selected from an InfoProvider (from the source storage) and written into the target storage.

2. Verify – data is read from target storage and compared against the original data in the InfoProvider, only then is verification successful.

3. Delete – data is deleted from the InfoProvider - This phase can be executed only after the successful verification phase.

Phases are completed in sequence, only after the previous phase finished successfully then another phase will be started.

Repair process

In case of an error, the request can be repaired. Depending on in which phase the error occurred, the repair process works in the following way:

• Copy – data for failed subrequests are deleted from the target storage and the copy phase is repeated (without successfully offloaded subrequests)

• Verify – data for offloading request is deleted from the target storage and the copy phase is repeated

• Delete – phase is repeated