首先常看硬盘ID

ll /dev/disk/by-id
#lrwxrwxrwx 1 root root  9 Sep 18 17:38 scsi-SATA_ST2000DM001-1ER_W4Z2BNDL -> ../../sdb



第二
xe sr-create type=lvm content-type=user device-config:device=/dev/disk/by-id/xxxxxxxxxxxxxxxxxxx name-label="Local storage 2"