Thanks excellent bill thank you very much Regards ATTE Victor Hugo Ochoa BBVA CCR America
2011/6/6 Bill Bitner <bit...@vnet.ibm.com> > In terms of performance, here are the key factors between > Dedicated and Minidisks: > 1. Dedicated DASD is not eligible for MDC, while minidisks > (full pack and partial pack) are eligible. > 2. Some hardware Storage Servers do not handle the I/Os that > CP generates for partial, and in some cases, fullpack > minidisks as efficiently as they do the I/O from > Dedicated DASD. > 3. There is a slight savings in pathlength for CCW translation > as CP does not have to check cylinder values. > > There were some older measurements done with Linux: > http://www.vm.ibm.com/perf/reports/zvm/html/520lxd.html > > Bill Bitner > -- Victor Hugo Ochoa Avila z/OS & z/VM systems programmer Mexico, City.
