The worldwide data storage software market is continuing to enjoy double-digit growth, with replication systems seeing the biggest recent sales increase.
Analyst IDC said storage software sales in 2005 reached $8.9bn (£5bn), representing growth of 12.6% on the previous year.
In the fourth quarter of 2005, the storage replication market posted the largest gain of 21.7% year-on-year.
The back-up/archive and storage resource management software markets continued to represent the largest storage software markets, said IDC. They each represented a third of the market.
"The storage software market continues to exhibit steady growth, particularly in the replication and backup and archive segments, driven by customer requirements of trying to protect and secure information in an increasingly complex IT environment," said IDC analyst Rhoda Phillips.
EMC had the biggest sales share of the market in the fourth quarter, with 29.2%. Symantec, bulked up following its acquisition of Veritas, was number two with 19.7%.
In third place was IBM, with an 11.5% share. Network Appliance and HP made up the top five.