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IDC's annual report, Worldwide Disk Storage Systems Forecast and Analysis 2000-2005, claims that IBM will be the only major vendor to see growth in external systems in 2001.
IBM has begun to close the gap between itself and EMC, the market leader. IBM's market share has risen from 7.8% to 12.2 %, while EMC's overall share has fallen from 25.6% in 2000 to 21.2%.
IBM has also announced its intention to increase its presence in the storage virtualisation market through an alliance with DataCore software. The deal will see IBM offer customers virtualisation technology from DataCore in advance of its own Storage tank offering, which is still under development.
Unlike Storage Tank, which will start shipping early next year, DataCore's SANSymphony will deal with data at the block level, which is vital to database applications.