Is it safe to unzone unused lun from RHEL7 RHEV host?

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Issue

There is an old and/or unused lun mapped to RHEV host/hypervisor.
Can I safely unmap it on the storage server or the host needs to be in maintenance?

Environment

Red Hat Enterprise Virtualization (RHEV) 3.6
Red Hat Enterprise Linux 7 hosts and hypervisors
vdsm-4.17.11-0.el7ev.noarch and later

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