Vantage can isolate some file system errors to a specific data or index subtable, or to a contiguous range of rows ("region") in a data or index subtable, it marks only the affected subtable or region down. This improves system performance and availability by allowing transactions that do not require access to the down subtable or rows to proceed, without causing a database failure that requires a system restart.
Vantage stops in-progress transactions that require the down subtable or region, and does not allow subsequent transactions that need access to them until the problem is fixed.