使用lsscsi查找要解挂载盘的ID:
拼接echo 1 > /sys/class/scsi_device/DISK_ID/device/delete;命令删除磁盘：
echo 1 > /sys/class/scsi_device/32\:0\:3\:0/device/delete;
echo 1 > /sys/class/scsi_device/32\:0\:4\:0/device/delete;
原文：https://www.cnblogs.com/alfredsun/p/11643317.html