Magnetic disk cache system based on solid-state disk

摘要: The invention discloses a magnetic disk cache system based on solid-state and belongs to the technical field of systems in computer data storage systems. comprises block metadata maintenance module, replacement module dirty writing-back module. According disk, reading writing performance large-scale environment is improved through hit rate space utilization are high; meanwhile, it guaranteed that blocks cached under condition restarted due faults can not be lost easily, cold-to-hot convergence time equipment shortened, problems according prior art, limited, fully utilized solved.