Enable Indexes to be Rebuilt in Parallel During Recovery

Performance impact: Variable

On multi-processor systems, set RecoveryThreads to minimum(number of CPUs available, number of indexes) to enable indexes to be rebuilt in parallel if recovery is necessary.

If a rebuild is necessary, progress can be viewed in the user log. Setting RecoveryThreads to a number larger than the number of CPUs available can cause recovery to take longer than if it were single-threaded.