IBM has expanded its server lineup with a new mainframe system designed just for Linux that may be aimed, in particular, at higher-end x86 systems. The new system uses IBM's specialty Linux processor and runs either Novell SUSE or Red Hat systems. It does not use the mainframe operating system z/OS but includes mainframe management software as well as IBM's z/Virtual Machine system. Together, they constitute the company's latest "solutions edition," or what IBM says are lower-cost, integrated stacks for the mainframe.