This article will describe installing iscsi-initiator-utils for iSCSI initiator.
Table of Contents
1 Install iscsi-initiator-utils
Install iscsi-initiator-utils package.
$ sudo yum install -y iscsi-initiator-utils
Add SELinux configuration.
$ cat <<EOF > iscsid.te module iscsid 1.0; require { type iscsid_t; class system module_load; } #============= iscsid_t ============== allow iscsid_t self:system module_load; EOF $ checkmodule -M -m -o iscsid.mod iscsid.te $ semodule_package -m iscsid.mod -o iscsid.pp $ sudo semodule -i iscsid.pp $ rm -f iscsid.mod iscsid.te iscsid.pp
2 Connect to iSCSI target with iscsiadm
Connect to iSCSI target with iscsiadm.
$ ISCSI_TARGET_PORTAL=iscsi-target.hiroom2.com $ ISCSI_TARGET_NAME=iqn.2017-08.com.hiroom2:disk $ sudo iscsiadm -m discovery -t st -p "${ISCSI_TARGET_PORTAL}" 192.168.11.95:3260,1 iqn.2017-08.com.hiroom2:disk $ sudo iscsiadm -m node \ --targetname "${ISCSI_TARGET_NAME}" -p "${ISCSI_TARGET_PORTAL}" -l Logging in to [iface: default, target: iqn.2017-08.com.hiroom2:disk, portal: 192.168.11.95,3260] (multiple) Login to [iface: default, target: iqn.2017-08.com.hiroom2:disk, portal: 192.168.11.95,3260] successful.
3 Mount iSCSI target device on boot
Connect to iSCSI target.
$ sudo iscsiadm -m discovery -t st -p "${ISCSI_TARGET_PORTAL}" $ sudo iscsiadm -m node \ --targetname "${ISCSI_TARGET_NAME}" -p "${ISCSI_TARGET_PORTAL}" -l
Create filesystem on iSCSI target device with fdisk and mkfs.
$ ISCSI_TARGET_DEV=/dev/sda $ cat <<EOF | sudo fdisk ${ISCSI_TARGET_DEV} n p 1 w EOF $ sudo mkfs.ext4 ${ISCSI_TARGET_DEV}1
Add mount entry to /etc/fstab. For avoiding mounting before network initialization, you need to add _netdev option. For making x-systemd.automount to mount, you need to add x-systemd.automount to option.
$ uuid=$(sudo blkid | grep "^${ISCSI_TARGET_DEV}1:" | \ sed -e 's/.* UUID="\([^"]*\)".*/\1/g') $ cat <<EOF | sudo tee -a /etc/fstab UUID="${uuid}" /mnt ext4 _netdev,x-systemd.automount 0 0 EOF