3Par Inc. (1408501) SEC Filing 10-K Annual report for the fiscal year ending Wednesday, March 31, 2010

Exhibit 99.1

3PAR Reports Financial Results for Fourth Quarter and

Full Year of Fiscal 2010

Fremont, CA, May 4, 2010—3PAR^® (NYSE: PAR), the leading global provider of utility storage, today reported results for the fourth quarter of fiscal year 2010, which ended March 31^st, 2010. Revenue for the fourth quarter was $53.7 million, an increase of 11% as compared to revenue of $48.5 million for the same period in the prior year, and an increase of 7% as compared to $50.1 million in the prior quarter, which ended December 31

For the fourth quarter of fiscal 2010, GAAP net loss was $99,000, or $0.00 loss per share, as compared to $907,000, or $0.01 loss per share for the same period in the prior year. Non-GAAP net income, which excludes the impact of stock-based compensation expense, was $2.6 million, or $0.04 earnings per share for the fourth quarter of fiscal 2010, as compared to $906,000, or $0.01 earnings per share, for the same period in the prior year.

Revenue for the fiscal year ended March 31^st, 2010 was $194.3 million, an increase of 5% from $184.7 million reported in the prior fiscal year. GAAP net loss for the fiscal year 2010 was $3.2 million, or $0.05 loss per share, as compared to $959,000, or $0.02 loss per share, in the fiscal year 2009. Non-GAAP net income for the fiscal year 2010 was $6.2 million, or $0.10 earnings per share, as compared to $5.7 million, or $0.09 earnings per share in the fiscal year 2009.

“We believe these results demonstrate our ability to exercise financial discipline as, over the course of the fiscal year, we were able to successfully manage expenses while we continued innovating new technologies—as evidenced by more than 20 new product introductions—and expanding internationally, with new operations in India, Australia, and Hong Kong,” said David Scott, Chief Executive Officer. “The support of our utility storage platform for comprehensive multi-tenancy with a compelling total cost of ownership allows our customers to deploy cloud computing service delivery models to achieve their business goals through delivering enterprise IT as a utility service.”

Additional Fourth Quarter Fiscal 2010 Financial Information

3PAR reports operating income (loss), net income (loss), and earnings (loss) per share on a GAAP and on a non-GAAP basis, which excludes the impact of stock-based compensation expense. The non-GAAP measures are described in greater detail below and are reconciled to the corresponding GAAP measures in the accompanying financial tables.