linux下扫描扫描SCSI总线上新增加的硬盘

[root@sre01 ~]# alias scandisk='echo "- - -" > /sys/class/scsi_host/host0/scan;echo "- - -" > /sys/class/scsi_host/host1/scan;echo "- - -" > /sys/class/scsi_host/host2/scan'
[root@sre01 ~]# scandisk