Log in to the CLI of the storage system and run the showiscsilinkedport command to check whether iSCSI connections still exist between the host and the storage system. For example: OceanStor: admin> showiscsilinkedport Index Target Name Target Port Init Name Init Port 0 iqn.2006-08 192.168.1.1 iqn.1987- 192.168.1.12:58255 .com.huawei 1:3260 05.com.ci :oceanstor: sco:01.2f 21000018827 5b528a1aa 8cf98:notco b nfig The messages above indicate that the host whose IP address is 192.168.1.12 has iSCSI connections to the storage system. The iSCSI services on the host must be stopped before the next operation is performed. If all iSCSI services on the host have been stopped, no message is displayed after the command is executed. This command applies to many storage devices that run iSCSI services, including V1000, S2000, S2600, and S5000.