STORAGE MEDIUM, METHOD, AND COMPUTER-READABLE RECORDING MEDIUM FOR IMPROVING RANDOM WRITE PERFORMANCE OF SOLID STATE DISK

摘要

PURPOSE: A recording medium which is possible to read the storage unit for improving the arbitrary write performance at an SSD(Solid State Disk) is provided so that according to the write request from the host system, data is recorded in HDD as the log form. Data is transferred to the idle time to SSD. The whole performance improvement of the storage unit is embodied. CONSTITUTION: An HDD(Hard Disk Drive)(110) stores the log data unit changing data about data write request from the host system into the log form. Bring data saved in HDD as the log data unit form and the SSD(Solid State Disk)(120) stores in the idle time generation. The log data unit comprises the Version information of data, the logical sector number information, and data in fact saved in the logical sector number of SSD and the commit informing the end of data. The logical sector number information shows the location in which data is saved when being transferred to SSD.