OSS_ilation writes "IBM touted 2006 as a resurgence year for the mainframe, but not so fast. At R.L. Polk and Co., one of the oldest automobile analytics firms in the U.S., an aging mainframe couldn't cut it, so the IT staff looked elsewhere. Their search led to a grid computing environment — more specifically, a grid computing environment running Linux on more than 120 Dell servers. The mainframe's still there, apparently, but after an internal comparison showed the Linux grid outperforming the mainframe by 70% with a 65% reduction in hardware costs, Polk seemed content banishing the big box to a dark, lonely corner for more medial tasks."