Data storage leader
was up 4.6% in early trading as it unveiled a new low-priced
network-attached storage system
, or NAS, designed to compete directly with rapidly-growing rival
. Network Appliance was up 6.9%. Other companies unveiled storage systems in announcements designed to draw attention from EMC.
unveiled a storage system designed to work with all hardware and software. IBM was up 1.7%.
said it would buy data-storage software maker
. Sun was up 4.6%.