Are NetApp sales slumping because of their customers perception of a steady decline in customer service and support or because of slumping overall slumping IT spending?

SAN FRANCISCO, May 23 (Reuters) – Network Appliance Inc.’s (NTAP.O: Quote, Profile , Research) chief executive said lower demand for its products by U.S. corporations was hurting sales, leading the data network storage maker to forecast declining sequential revenue.

“We saw a slowdown in information-technology spending in U.S. enterprise accounts,” CEO Dan Warmenhoven said in an interview after the company reported fiscal fourth-quarter earnings on Wednesday. “We’re not confident that we are back in a normal spending pattern.”

HP seems to be upbeat on server sales, If HP’s server sales are growing – why would storage sales be slumping for NetApp?

H-P’s results, attributed to strong sales of personal computers and server-computers, had been preannounced earlier this month

Information Technology is a complex marketplace, and we are seeing two very different views of corporate IT spending patterns here.