3 Preparing for a new z14 ZR1 This chapter describes the following scenarios when preparing for a z14 ZR1 server  installation: Our examples show upgrading from an existing z13s or installing a new z14 ZR1 only. An  upgrade includes a new frame, new drawers (CPC and PCIe+ I/O drawers), and new or  carry-forward I/O features. Because many environments exists, the results that are achieved in your environment might  differ from those that are described here. This chapter includes the following topics: GLYPH<SM590000> Upgrading an existing IBM Z server (z13s) to a z14 ZR1 server and maintaining an  existing serial number. GLYPH<SM590000> Installing a new z14 ZR1 server. GLYPH<SM590000> 3.1, “Hardware features” on page 32 GLYPH<SM590000> 3.2, “Upgrading a z13s to a z14 ZR1: Maintaining existing serial number (Frame roll MES)”  on page 33 GLYPH<SM590000> 3.3, “Saving and restoring OSA configuration data” on page 43 GLYPH<SM590000> 3.4, “Installing a new z14 ZR1 into  an existing environment” on page 43 GLYPH<SM590000> 3.5, “Saving and restoring any OSA configuration data” on page 48 GLYPH<SM590000> 3.6, “Extra steps and processes” on page 48 31 ' Copyright IBM Corp. 2018, 2019. All rights reserved.