Well I said it originally, and I was referring to the fact that a lot of the zseries hardware is actually just software emulation running somewhere that makes a

Well I said it originally, and I was referring to the fact that a lot of the zseries hardware is actually just software emulation running somewhere that makes a piece of regular hardware look like a zseries peripheral. Take the disk subsystem for example, the disks are just boring old SCSI disks fronted by a linux/PPC controller which is making them look like ficon CKD/DASD disks. Sure, sometimes IBM has a little "secret sauce" in place to ease that transition, but its not at the level of actually writing native 3390 tracks on modern multi TB disk drives.