Usual satellite design adopts hardware Error Detection and Correction (EDAC) circuitary for memory elements to endure proper operation in space radiation environment and periodic read-back(scrubbing) scheme to remove errors occurred and to prevent further accumulation of errors, in parallel, But lack of detail radiation test data upset rates of KOMPSAT-2 mass storage was estimated very worse compared to that of KOMPSAT-1, which was evaluated from very precise radiation test. Although upset rates were evaluated enough low to accommodate by KOMPSAT-2 Flight Software, hardware scrubbing scheme is studied to shorten scrubbing time as well. This paper describes hardware scrubbing architecture having minimum 1.88 minutes scrubbing interval over 1 Gbits memory.