GLYPH<SM590000> The z/OS V2.3 real storage manager (RSM) is planned to support a new asynchronous  memory clear operation to clear the data from 1M page frames by using I/O processors  (SAPs) on next generation processors. The new asynchronous memory clear operation  eliminates the CPU cost for this operation and help improve performance of RSM first  reference page fault processing and system services, such as IARV64 and STORAGE  OBTAIN. GLYPH<SM590000> RMF support is provided to collect SMC-D related performance measurements in SMF 73  Channel Path Activity and SMF 74 subtype 9 PCIE Activity records. It also provides these  measurements in the RMF Postprocessor and Monitor III PCIE and Channel Activity  reports. This support is also available on z/OS V2.2 with PTF UA80445 for APAR  OA49113. GLYPH<SM590000> HyperSwap support is enhanced to allow RESERVE processing. When a system runs a  request to swap to secondary devices that are managed by HyperSwap, z/OS detects  when RESERVEs are held and ensures that the devices that are swapped also hold the  RESERVE. This enhancement is provided with collaboration from z/OS, GDPS  HyperSwap, and CSM HyperSwap. GLYPH<SM590000> Includes Single System Image and Live Guest Relocation in the base. In z/VM 6.4, this  feature was the VMSSI-priced feature. GLYPH<SM590000> Enhances the dump process to reduce the time that is required to create and process  dumps. GLYPH<SM590000> Upgrades to a new Architecture Level Set. This upgrade requires an IBM zEnterprise  EC12 or BC12, or later. GLYPH<SM590000> Provides the base for more functionality to be delivered as service Small Program  Enhancements (SPE) after general availability. 7.6 z/VM migration considerations 7.6.1 z/VM 7.1 IBM z14 ZR1 supports z/VM 7.1 and z/VM 6.4. z/VM is moving to continuous delivery model.  For more information, see this web page. z/VM 7.1 can be installed directly on IBM z14 ZR1. z/VM V7R1 includes the following new  features: z/VM 7.1 includes SPEs shipped for z/VM 6.4, including Virtual Switch Enhanced Load  Balancing, DS8K z-Thin Provisioning, and Encrypted Paging. z/VM V6.4 can be installed on a z14 ZR1 server with an image that is obtained from IBM after  August 25, 2017. The PTF for APAR VM65942 must be applied immediately after installing  z/VM V6.4 and before configuring any part of the new z/VM system. 7.6.2 z/VM 6.4 Chapter 7. Operating system support  275