Data Domain, a Santa Clara, Ca. provider of storage appliances for disk-based backup and network-based disaster recovery, has filed for a $100M initial public offering.

The company did $46 million in sales last year, but had a loss of $4 million.

Data Domain has raised around $41 million in VC funding. Greylock Partners owns 30.3 percent of the company, New Enterprise Associates 28.9 percent and Sutter Hill Ventures 16.8 percent.