OCI : iSCSI Block Volumes Not Attached During Boot

Applies to:   

Oracle Cloud Infrastructure

Oracle Linux - Version 7 and later

  

Symptoms 

iSCSI block volumes are not detected during system boot. There are no active iSCSI sessions and the iSCSI service is not running (inactive):

# lsblk /dev/sdb 
lsblk: /dev/sdb: not a block device 

# iscsiadm -m node 
169.254.0.2:3260,1 iqn.2015-02.oracle.boot:uefi 
169.254.2.2:3260,4294967295 iqn.2015-12.com.oracleiaas:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx 

# iscsiadm -m session 
iscsiadm: No active sessions. 

# systemctl status iscsi 
● iscsi.service - Login and scanning of iSCSI devices 
  Loaded: loaded (/usr/lib/systemd/system/iscsi.service; disabled; vendor preset: disabled) 
  Active: inactive (dead) 
    Docs: man:iscsiadm(8) 
          man:iscsid(8) 
Jan 30 11:26:36 <hostname> systemd[1]: iscsi.service: Unit cannot be reloaded because it is inactive.