The worldwide storage software market grew 10% year-on-year to be worth $2.1bn (£1.24bn) in the third quarter of 2005.
The figure was reported by analyst IDC, who said the increase represented eight consecutive quarters of double-digit growth.
IDC said the biggest market area growth was in data storage replication, which saw 16.8% year-on-year growth. The data back-up and archiving markets grew 12.7%.
The analyst said greater demand for data protection, data recovery and retrieval, increased use of remote working and the need to comply with regulatory rules was driving storage software growth.
IDC predicted that strong growth would continue not only in enterprises’ main data centres, but also in remote and branch offices.
IDC’s figures showed EMC still led the overall market in the third quarter, with $621m (£365m) in sales, and a 29.1% market revenue share.
Symantec, which recently acquired data back-up giant Veritas, was in second position, with sales of $427m, and a 20% sales share. IBM was third with sales of $201m and a 9.4% share.
Network Appliance and HP made up the remainder of the top five.