The only other storage-only vendor in the top six, Hitachi and Hitachi Data Systems (HDS), saw its storage revenue drop 1.7 percent to $590 million, IDC said.
When both internal and external disk storage are counted, IBM was the second-largest vendor. IBM's external disk storage system revenue in the fourth quarter rose 1.3 percent to $1.0 billion, but revenue for both external and internal disk storage systems fell 0.4 percent to $1.4 billion.
Hewlett-Packard's external disk storage systems revenue fell 7.4 percent in the fourth quarter of 2012 to $626 million, while its total disk storage systems revenue fell 8.8 percent to $1.4 billion.
Dell saw a slight 1.1 percent drop in its total disk storage systems revenue to $983 million.
PUBLISHED MARCH 8, 2013