Network Appliance has revealed that it plans to buy privately-held Onaro, which develops storage management software.

Onaro's main product family is SANScreen. The suite's components include an engine that models the relationships between components in a distributed system, a repository that monitors the storage services that applications need, and a change repository for tracking device and service changes, according to a company white paper.

The point is to help administrators improve performance and resolve problems within their storage area networks.

Onaro's technology is deployed in 32 percent of the Fortune 50 companies, according to a statement. NetApp said Onaro's products are complementary to its existing offerings, which include its V-Series virtualisation systems, ReplicatorX data recovery and replication software, and its Decru DataFort storage encryption appliances.

NetApp said the deal will close in the first quarter of this year.

Financial terms were not disclosed.