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CDP's Persistent Storage Manager allows the user to create up to 250 True Images of the system's data, so clients and administrators can quickly recover deleted or corrupted files. Additionally, the NAS 300 allows administrators to use any of the 250 True Images to restore a complete drive or volume in a single step, eliminating the tedium of dragging and dropping thousands of files. This single-step volume restoral provides advantages over some other vendors' solutions, which eliminate all previous images after a volume restoral. IBM's industry leading volume restoration keeps intact all True Images not used in the restoration technology, allowing administrators to change their selection even after a restore is complete.