[Unit]
Description=Availability of block devices
After=lvm2-activation.service lvm2-lvmetad.service iscsi-shutdown.service iscsi.service iscsid.service fcoe.service
DefaultDependencies=no
Conflicts=shutdown.target

[Service]
Type=oneshot
ExecStart=/usr/bin/true
ExecStop=/usr/sbin/blkdeactivate -u -l wholevg -m disablequeueing -r wait
RemainAfterExit=yes

[Install]
WantedBy=sysinit.target