The firmware partition (similar to the PCIe support partition, which is also known as the  master control services [MCS] partition), along with the Support Element (SE), provides  instrumentation to create and manage the Linux native partitions (used also for deploying  kernel-based virtual machine (KVM) code), partitions that run the IBM z/VM hypervisor, or  partitions that run appliances that use the Secure Service Container framework.  The connectivity from the SE to the MCS is provided through the internal management  network by two OSA-Express 1000BASE-T that are acting as management adapters (OSM).  This section provides an overview for DPM prerequisites and considerations for supported  features. For more information, see the  IBM Dynamic Partition Manager (DPM) Guide, SB10-7170. The DPM is a mode of operation that requires IBM z14 M0x (Machine Type 3906), IBM z14  ZR1 (Machine Type 3907), IBM z13 (Machine Type 2964 - Driver Level 27), or z13s (Machine  Type 2965) CPCs.  16.1.1 Prerequisites Prerequisites 16.1.2 Planning considerations New system Feature enablement:  DPM is a feature code (FC) 0016 that can be selected during the  machine order process. FC 0016 requires one pair of OSA-Express 1000BASE-T  adapters, which must be included in the configuration.  When the Z CPC is managed by using DPM, the OSA-Express 1000BASE-T features are  dedicated for DPM configuration and  cannot  be used for any other purpose. In this section, we provide considerations for installing a new system (create a configuration  from scratch) and for switching a system from “traditional” management to use DPM.  We also describe I/O features and other configuration aspects, such as time synchronization  and resource allocation.  If the system you are configuring is new (no pre-existing configuration to be saved or  migrated), start configuring the system as described in 16.1.4, “Enabling DPM” on page 391. Important:  Consider the following points: GLYPH<SM590000> A CPC in DPM mode cannot be part of an Ensemble that is managed by Unified  Resource Manager. The HMC that is used to enable the CPC in DPM mode must  not be an Ensemble HMC (Primary or Backup Ensemble HMC).  GLYPH<SM590000> All definitions that are made for the CPC (if any) before the DPM mode is activated are  saved and can be brought back if you choose to revert to standard PR/SM mode.  However, when switching the CPC into standard PR/SM mode, any definitions that are  made with the CPC in DPM mode are discarded (not saved). Chapter 16. Configuring a z14 ZR1 server by using Dynamic Partition Manager  389