Linux：iscsi存储服务器配置

服务器添加4块硬盘 
mdadm -Cv /dev/md0 -n 3 -l 5 -x 1 /dev/sdb /dev/sdc /dev/sdd /dev/sde

记下UUID值
 mdadm -D /dev/md0

UUID : 3bf9f088:85d776c9:174cce9b:5ef065b6

vim /etc/mdadm.conf

DEVICE  /dev/sdb /dev/sdc /dev/sdd /dev/sde

ARRAY   /dev/md0 UUID=3bf9f088:85d776c9:174cce9b:5ef065b6

yum install targetd targetcli -y

systemctl start targetd

targetcli
  o- backstores .......................................................... [...]

  | o- block .............................................. [Storage Objects: 1]

  | o- fileio ............................................. [Storage Objects: 0]

  | o- pscsi .............................................. [Storage Objects: 0]

  | o- ramdisk ............................................ [Storage Objects: 0]

  o- iscsi ........................................................ [Targets: 0]

  o- loopback ..................................................... [Targets: 

cd /backstores/block
create disk0 /dev/md0
cd /
ls

 o- backstores .......................................................... [...]

  | o- block .............................................. [Storage Objects: 1]

  | | o- disk0 ..................... [/dev/md0 (40.0GiB) write-thru deactivated]

  | o- fileio ............................................. [Storage Objects: 0]

  | o- pscsi .............................................. [Storage Objects: 0]

  | o- ramdisk ............................................ [Storage Objects: 0]

  o- iscsi ........................................................ [Targets: 0]

  o- loopback ..................................................... [Targets: 
 

cd iscsi
 create
 cd iqn.2003-01.org.linux-iscsi.linuxprobe.x8664:sn.1d335848f0e7/tpg1/luns 

create /backstores/block/disk0 
cd ../acls

create iqn.2003-01.org.linux-iscsi.linuxprobe.x8664:sn.1d335848f0e7:client

 cd ../portals
create 192.168.10.10
ls /

exit
 firewall-cmd --permanent  --add-port=3260/tcp
 firewall-cmd --reload
 客户端
ping -c 4 192.168.10.10
yum install iscsi-initiator-utils
vim /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.2003-01.org.linux-iscsi.linuxprobe.x8664:sn.1d335848f0e7:client
systemctl restart iscsid
iscsiadm -m discovery -t st -p 192.168.10.10

iscsiadm -m node -T iqn.2003-01.org.linux-iscsi.linuxprobe.x8664:sn.1d335848f0e7 -p 192.168.10.10 --login

mkfs.xfs /dev/sdb

mkdir /iscsi
mount /dev/sdb /iscsi
df -h
blkid | grep /dev/sdb
vim /etc/fstab
UUID=fc614f17-082f-467e-bb4e-40c5ff811d24 /iscsi xfs defaults,_netdev 0 0