METHOD AND SYSTEM FOR RECOVERY OF DATABASE INTEGRITY IN SYSTEM OF BITSLICE DATABASES WITHOUT RESOURCE SHARING USING SHARED VIRTUAL DISCS AND AUTOMATED DATA MEDIUM FOR THEM

摘要

FIELD: computer database access systems. SUBSTANCE: system provides for reduction of nonproductive costs of processing for recovery of database integrity, data corruption as result of failure of database access provision system which has plurality of database access units. First copy of database is started at first database access unit, first and second access units being to them through both memory devices that store first data for first copy of database; malfunction is detected in first access unit; then access is rendered to first data stored in one memory device and to third access unit through second one; first copy of database is started at third database access unit rendering access to first data through second unit thereby recovering database integrity disturbed as result of failure of first access unit. EFFECT: reduced nonproductive costs of processing. 31 cl, 6 dwg