> I have been bothered by lack of "basic mode" for the past couple > years. Maybe this is not a problem, since I hear few customers > complaining.
Rick: Most customers running z900s are already running in LPAR mode. Don't forget that if you have IFLs or ICFs on z900s or z800s you are forced into LPAR mode. For most customers running serious Linux workload (on IFLs) they are already running in LPAR mode. There is an impact to customers running in basic mode today so they can have V=F guests (most commonly for VSE/ESA), but they can continue to utilize z800s and z900s. I strongly believe that the best way to run most Linux on zSeries environments is under z/VM. I don't see people running Linux in preferred guests as the best cost model for this is on IFLs (which means LPARs) due to the cost savings. Don't forget that IFLs are always $125K (US) whether they are on Multiprise 3000 or a z990. Contrast that wit the cost of a "standard" engine which increases based on capacity (i.e. mips) and is a LOT more than $125K on a z990. Jim
