8 Hosts This chapter describes the host configuration procedures that are required to attach  supported hosts to the IBM Spectrum Virtualize system. It also introduces new concepts  about Host Clusters, and N-Port Virtualization ID (NPIV) support from a host’s perspective. This chapter includes the following topics: GLYPH<SM590000> 8.1, “Host attachment overview” on page 318 GLYPH<SM590000> 8.2, “Host clusters” on page 319 GLYPH<SM590000> 8.3, “N-Port Virtualization ID support” on page 319 GLYPH<SM590000> 8.4, “Hosts operations by using the GUI” on page 327 GLYPH<SM590000> 8.5, “Hosts operations by using command-line interface” on page 373 ' Copyright IBM Corp. 2011, 201 8, 2019. All rights reserved. 317