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echo "1" > /sys/class/block/sdX/device/rescan
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[root@node-1 ~]# echo "- - -" > /sys/class/scsi_host/host0/scan
[root@node-1 ~]# echo "- - -" > /sys/class/scsi_host/host1/scan
[root@node-1 ~]# echo "- - -" > /sys/class/scsi_host/host2/scan