Design of flash-based DBMS: an in-page logging approach

The popularity of high-density flash memory as data storage media has increased steadily for a wide spectrum of computing devices such as PDA's, MP3 players, mobile phones and digital cameras. More recently, computer manufacturers started launching new lines of mobile or portable computers that did away with magnetic disk drives altogether, replacing them with tens of gigabytes of NAND flash memory. Like EEPROM and magnetic disk drives, flash memory is non-volatile and retains its contents even when the power is turned off. As its capacity increases and price drops, flash memory will compete more successfully with lower-end, lowercapacity disk drives. It is thus not inconceivable to consider running a full database system on the flash-only computing platforms or running an embedded database system on the lightweight computing devices. In this paper, we present a new design called inpage logging (IPL) for flash memory based database servers. This new design overcomes the limitatio...

• Type: Conference
• Year: 2007
• Where: SIGMOD
• Authors: Sang-Won Lee, Bongki Moon
• Keywords: Database, Flash Memory, Memory Based Database, NAND Flash Memory, SIGMOD 2007