Tech Wiki

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/ch24

yum install targetcli
systemctl status target
systemctl enable target
targetcli
/> ls
o- / ......................................................................................................................... [...]
  o- backstores .............................................................................................................. [...]
  | o- block .................................................................................................. [Storage Objects: 0]
  | o- fileio ................................................................................................. [Storage Objects: 0]
  | o- pscsi .................................................................................................. [Storage Objects: 0]
  | o- ramdisk ................................................................................................ [Storage Objects: 0]
  o- iscsi ............................................................................................................ [Targets: 0]
  o- loopback ......................................................................................................... [Targets: 0]

FILEIO (Linux file-backed storage)  write_back and write_thru
/> /backstores/fileio create file1 /home/tgt/disk1.img 100G write_back=false
Created fileio file1 with size 107374182400
/> ls /backstores/fileio/
o- fileio ..................................................................................................... [Storage Objects: 1]
  o- file1 ................................................................. [/home/tgt/disk1.img (100.0GiB) write-thru deactivated]
    o- alua ....................................................................................................... [ALUA Groups: 1]
      o- default_tg_pt_gp ........................................................................... [ALUA state: Active/optimized]

BLOCK (Linux BLOCK devices)
/> /backstores/block create name=block1 dev=/dev/sdb
Generating a wwn serial.
Created block storage object block_backend using /dev/sdb.

PSCSI(Linux pass-through SCSI devices)

RAMDISK(Linux RAMDISK_MCP)