Extra disks help meet storage demands Looking to affix the ‘On Demand’ tag on to anything it can, IBM today announced enhancements to its high-end storage array.At a press event here IBM said its TotalStorage Enterprise Storage Server Model 800 (Shark) can now be purchased with extra disks that can be used as needed. In other words the array is built with extra disks to meet storage growth, but with out a higher price tag at purchase.Jim Tuckwell, a marketing manager with IBM explains the extra disk capacity is in standby mode and can be purchased as needed. He says buying the Shark array with standby disks will incur a 10 percent carrying charge. Up to 6.9 terabytes of extra capacity can be carried in the enhanced ESS. IBM also added new microcode to the Shark that improves the company’s copy service application, including point in time copy and remote copying. The new code improves the time it takes to establish or set-up a point in time copy by 10 times says Tuckwell.Specifically for IBM’s system 390 (s/390) product line, IBM now gives the ability to take a flash copy of data sets within a LUN, rather than copying the entire LUN. Tuckwell explains this better utilizes storage capacity and gives more flexibility to enterprises. Technology Industry