11.1 Introduction to the HMC and SE 11.2 HMC and SE changes and new features 11.2.1 Driver Level 36 HMC and SE new features The HMC is a stand-alone computer that runs a set of management applications. The HMC is  a closed system  which means that no other applications can be installed on it. The HMC is used to set up  manage  monitor  and operate one or more CPCs. It manages  IBM Z hardware  its logical partitions (LPARs)  and provides support applications. At least one  HMC is required to operate an IBM Z. An HMC can manage multiple Z CPCs  and can be at a  local or a remote site. The SEs are two integrated servers in the z14 ZR1 frame. One SE is the primary SE (active)  and the other is the alternative SE (backup). As with the HMCs  the SEs are closed systems   and no other applications can be installed on them. When tasks are performed at the HMC  the commands are routed to the active SE of the z14  ZR1. The SE then issues those commands to their CPC. One HMC can control up to 100 SEs  and one SE can be controlled by up to 32 HMCs. Some functions are available only on the SE. With Single Object Operations (SOOs)  these  functions can be used from the HMC. For more information  see “Single Object Operations”  on page 376. With Driver 27 (Version 2.13.1)  the IBM Dynamic Partition Manager (DPM) was introduced  for CPCs that are running Linux only with Fibre Channel Protocol (FCP) attached storage.  HMC Driver 32 (Version 2.14.0) with MCLs added support for ECKD FICON disks to the DPM  (Release 3.1). HMC 2.14.1 includes DPM 3.2  with enhanced storage management  capabilities. DPM is a mode of operation that enables customers with little or no knowledge of  IBM Z technology to set up the system efficiently and with ease.  For more information  see IBM Knowledge Center. At IBM Knowledge Center  click the search  engine window and enter  DPM . The HMC Remote Support Facility (RSF) provides an important communication to a  centralized IBM support network for hardware problem reporting and service. For more  information  see 11.4  “Remote Support Fa cility” on page 374. The initial release that is included with z14 ZR1 is HMC application Version 2.14.0. Use the  “What’s New” task to examine the new features that are available for each release. For more  information about HMC and SE functions  use the HMC and SE (Version 2.14.0) console help  system or see IBM Knowledge Center. At IBM Knowledge Center  search for “z14 HMC”.  The following support has been added with Driver 36: GLYPH<SM590000> Dynamic I/O for Standalone CF CPCs (requires z/OS or z/VM support) GLYPH<SM590000> CTN Split and CTN merge GLYPH<SM590000> Coupling Facility Control Code 23 (enhancements and new features) 358  IBM 14 Model ZR1 Technical Guide