8456ch_DSCLI.fm Draft Document for Review December 5, 2019 4:33 pm 408  IBM DS8900F Architecture and Implementation Example 12-52 Host Change and Removal  dscli>  showhost Host_1 Name Host_1 Type Linux Server State Online AddrMode scsimap256 Volumes 8 Host ports 2 I/O ports 16 (all) AddrDiscovery lunpolling LBS 512 Cluster cluster_2 dscli>  chhost -cluster cluster_2 Host_2 CMUC00531I chhost: The host Host_2 is successfully modified. dscli>  chhost -unassign Host_1 CMUC00531I chhost: The host Host_1 is successfully modified. dscli>  showhost Host_1 Name Host_1 Type Linux Server State Online AddrMode scsimap256 Volumes 8 Host ports 2 I/O ports 16 (all) AddrDiscovery lunpolling LBS 512 Cluster - dscli>  rmhost -quiet Host_1 CMUC00533E rmhost: The host IBM.2107-75HAL91/Host_1 cannot be removed because it contains  volumes. dscli>  lsvolgrp -type scsimap256 Name ID Type ========================== x3650_2_54 V4 SCSI Map 256 Host_1 V5 SCSI Map 256 cluster_2 V6 SCSI Map 256 x3550_2_03 V8 SCSI Map 256 Host_2 V9 SCSI Map 256 dscli>  showvolgrp v5 Name Host_1 ID V5 Type SCSI Map 256 Vols 2000 2001 2002 2003 2101 2100 2102 2103 dscli>  chvolgrp -action remove -volume 2000-2003,2100-2103 v5 CMUC00031I chvolgrp: Volume group V9 successfully modified. dscli>  rmhost Host_1 CMUC00529W rmhost: Are you sure that you want to delete host Host_1? [Y/N]: y CMUC00528I rmhost: The host Host_1 is successfully deleted. dscli>  lsvolgrp -type scsimap256 Name ID Type ========================== x3650_2_54 V4 SCSI Map 256 cluster_2 V6 SCSI Map 256 x3550_2_03 V8 SCSI Map 256 Host_2 V9 SCSI Map 256