SAN FRANCISCO (MarketWatch) -- NetApp Inc. NTAP, -4.27% said Tuesday afternoon that it plans to lay off about 900 of its workers in a cost-cutting move. The announcement was made as part of the company's earnings report for the fourth fiscal quarter, which saw earnings slip on a slight increase in revenues. NetApp shares were up 2.1% in after-hours trades on Tuesday following the report. The company also projected a revenue range of $1.48 billion to $1.58 billion for the current quarter, slightly below Wall Street's consensus forecast of $1.6 billion for the period.