During this new 2018 year, IBMz skills shortage will be even more critical than in the previous years, while the performance level expectation has never been so high in term of response time and service level driven by round the clock needs of eBAnking, eCommerce, Credits Cards instant payments, international customers, etc… to answer theses needs the overall architecture must be tuned for high performance but is more and more complex with many LPARs, different zSystem configurations such as : storage disks provided by Hitachi Vantara, DELL EMC or IBM,   and various options for Disk Flash HPFE , Ficon 16S , z HPF , z Hyperlink, z Hyperwrite , z SuperPav , EasyTier , Flash 3.2T , Cloud Storage HSM …
Since 2014 innovation is booming to speed up zOS Disk response time in order to boost  zOS Systems performance. In the following weeks, we will comeback on theses items and show how storage performance is a major contributor to the overall IBMz system performance mainly when Storage response time do not perfectly meet expectation and how automatic storage performance monitoring is probably the best way in 2018 to meet targets and skill-up z-teams.