Migrating from tape to disk-based backup solutions is one of the fastest growing trends in the enterprise storage community, and the storage industry has responded with a bewildering array of disk-based solutions. This new whitepaper, written by the Taneja Group and based on two-years of customer research and surveys, offers practical advice on determining if disk storage actually makes sense for your company. Written as a primer for staff involved in the storage evaluation process, this paper examines typical IT environments, the pros and cons of adding disk storage, and the various technical considerations and business ramifications of this large investment