ISCSI客戶端配置：
yum install iscsi-initiator-utils
vim /etc/iscsi/initiatorname.iscsi
InitiatorName = iqn.2014-11...:Desktop0
systemctl restart iscsid.service
systemctl enable iscsid(與服務器通訊)
systemctl restart iscsi(讀取iscsi文件)
systemctl enable iscsi
iscsiadm -m discovery -t st(send target) -p server0 可以man iscsiadmin 查看
yum -y install tree
tree /var/lib/iscsi/
systemctl restart iscsi
fdisk -l 可看到/dev/sda的盤，只要保證iscsi開啓並且/var/lib/iscsi裏的內容還在，那麼開機後就會有iscsi的盤
fdisk /dev/sda; n,p,+500M,w,partprobe
mkfs.xfs /dev/sda1
mkdir /iscsidisk; blkid 獲取UUID，用來掛載
vim /etc/fstab
UUID = "..." /iscsidisk xfs defaults, _netdev 0 0
mount -a 重啓後查看是否掛載
出錯時可以用： rm -rf /var/lib/iscsi/* 再重新做一遍