echo "- - -" > /sys/class/scsi_host/host0/scan
echo "- - -" > /sys/class/scsi_host/host1/scan
echo "- - -" > /sys/class/scsi_host/host2/scan
suse11 sp4 增加硬盘后进行扫描无需重启
原文：http://heartlost.blog.51cto.com/951147/1761664
