Abstract: The present principles provide methods and apparatus for preventing data corruption on a storage device by integrating a journaling file system with a cache system. To ensure journal accuracy with respect to data that is most likely to affect file system integrity, a method in accordance with an aspect of the present principles includes bypassing the cache when writing such data to a main platter of a storage device. Furthermore, to ensure overall efficiency in reading and writing data, a method in accordance with an aspect of the present principles includes writing to a cache, in addition to writing to the platter, data that has a relatively less damaging effect on file system integrity. Thus, aspects of the present principles optimally integrate a cache system with a journaling file system to provide both a robust file system integrity and an efficient reading and writing mechanism.

Abstract: The system and method for preventing write errors in storage mediums includes detecting the presence of an early power fail (EPF) signal derived from a power supply circuit providing power to the storage device. In response to the EPF signal, a modified standby-immediate (MSI) command is issued to the Storage device controller circuitry. The storage device controller circuitry responds by causing the storage medium to finish the current write operation and cease all future write operations. In this manner, write errors are prevented by causing the storage device to cease write operations before the expiration of predetermined time period between the issuance of the EPF signal and actual power failure.