Linux System Configuration iSCSI storage

First, create LVM

[[Email protected] ~]# pvcreate /dev/sdc1[[email protected] ~]# vgcreate  vglabstor1 /dev/sdc1  Volume group  "Vglabstor1"  successfully created[ [Email protected] ~]# lvcreate -l 100%free -n lvlabstor1 vglabstor1   Logical volume  "Lvlabstor1"  created. [[email protected] ~]# lvscan  active  '/dev/cl/swap '  [2.00 GiB]  inherit  active  '/dev/cl/root '  [46.50 GiB] inherit  ACTIVE  '/dev/ Vglabstor1/lvlabstor1 '  [80.00 gib] inherit[[email protected] ~]# mkfs.xfs / Dev/vglabstor1/lvlabstor1meta-data=/dev/vglabstor1/lvlabstor1 isize=512 agcount=4, agsize= 5242624 blks         = sectsz=512 attr=2,  Projid32bit=1         = crc=1 finobt=0, sparse=0data = bsize=4096 blocks=20970496, imaxpct=25          = sunit=0 swidth=0 blksnaming =version  2 bsize=4096 ascii-ci=0 ftype=1log =internal log bsize=4096 blocks= 10239, version=2         = sectsz=512 sunit=0  blks, lazy-count=1realtime =none extsz=4096 blocks=0, rtextents=0[[email  protected] ~]# mkdir /labstor1[[email protected] ~]# mount /dev/vglabstor1/ lvlabstor1 /labstor1/

II. installation configuration iSCSI target

1. Installing TARGETCLI

[[email protected] ~]# uname-r3.10.0-514.el7.x86_64[[email protected] ~]# cat/etc/redhat-release CentOS Linux release 7. 3.1611 (Core) [[email protected] ~]# Yum install targetcli

2. Configure TARGETCLI

[[email protected] ~]# targetclitargetcli shell version 2.1.fb46copyright  2011-2013 by datera, inc and others. for help on commands, type  ' help './backstores> cd fileio/backstores/ Fileio> create disk01 /labstor1/disk01.img 1gcreated fileio disk01 with  size 1073741824/backstores/fileio> create disk02 /labstor1/disk02.img  30gcreated fileio disk02 with size 32212254720/backstores/fileio> ls /o-  /  ......................................................................................................................  [...]   o- backstores  ...........................................................................................................  [...]   | O- BLOCK&NBSP, ... ..... ... .... ... .... ... .... ... ..... .... ..... ..... ..... ..... ..... ..... ..... ..... ..................................... [storage objects: 0]  | o- fileio  ..... ..... ..... ..... ..... ............. .......... ..... ..... ..... ................. ..........  [storage  Objects: 2]  | | o- disk01  .......................................................... [/labstor1/disk01.img  (1.0GiB)   write-back deactivated]  | | | o- alua  ..... ..... ..... ..... ..... .............. .......... ..... ..... ..... ..... .............. ...........  [alua  Groups: 1]  | | |   o- default_tg_pt_gp  ..... ..... ..... ..... ..... ..... ....  [alua state: active/..... ..... ..... .....??????????????????. optimized]  | | o- disk02  ......................................................... [/labstor1/disk02.img  (30.0GiB)   write-back deactivated]  | |   o- alua  ..... ..... ..... ..... ..... .............. .......... ..... ..... ..... ..... .............. ...........  [alua  Groups: 1]  | |     o- default_tg_pt_gp  ..... ..... ..... ..... ..... ..... ....  [alua state: active/..... ..... ..... .....??????????????????. optimized]  | o- pscsi  ..... ..... ..... ..... ..... ............. .......... ..... ..... ..... ..... .............. ...........  [storage  Objects: 0]  | o- ramdisk  ..... ..... ..... ..... .............. ........... ..... ..... ..... ................. ..........  [storage  Objects: 0]  o- iscsi  .........................................................................................................  [targets: 1]  | o- iqn.2018-05.storage.kvm.com:stor1  ... ..... .... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... .....  [tpgs: 1]  |   o- tpg1  ..... ..... ..... ..... .............. ........... ....... ..... .................. .........  [no-gen-acls , no-auth]  |     o- acls  ..... ..... ..... ..... ..... ..... ..... ....... .............. ..... ..... ..... ..... ..... ..... ............ ...........  [ acls: 0]  |     o- luns  ..... ..... ..... ..... ..... ..... ..... ....... .............. ..... ..... ..... ..... ..... ..... ............ ...........  [ luns: 0]  |     o- portals  ..... ..... ..... ..... ..... .............. .......... ..... ..... ..... ..... ..... ............. ..........  [ portals: 1]  |       o- 0.0.0.0:3260  ..... ..... ..... ..... ..... ............... ......... ..... ..... ..... ..... ..... ............. ..........  [ok]   O- LOOPBACK&NBSP: ..... ..... ..... ..... ..... ..... ..... ........... ................  [targets: 0]/backstores/fileio> cd /. .................... .....???????.. iscsi//iscsi> lso- iscsi  ...........................................................................................................  [targets: 1]  o- iqn.2018-05.storage.kvm.com:stor1  ................................................................................ [tpgs: 1]     o- tpg1  ..... ..... ..... ..... ..... ............. .......... ..... ..... ..... ................. ..........  [ no-gen-acls, no-auth]      o- acls  .........................................................................................................  [acls: 0]      o- luns  .........................................................................................................  [LUNS: 0]     &Nbsp;o- portals  ..... ..... ..... ..... ..... ............... ......... ..... ..... ..... ..... ..... .............. ..........  [ portals: 1]        o- 0.0.0.0:3260  ..... ..... ..... ..... ..... ..... ............ ........... ..... ..... ..... ..... ..... .............. ..........  [ok] /iscsi> cd iqn.2018-05.storage.kvm.com:stor1/tpg1/luns/iscsi/iqn.20...or1/tpg1/luns>  Create /backstores/fileio/disk01created lun 0./iscsi/iqn.20...or1/tpg1/luns> create  /backstores/fileio/disk02created lun 1./iscsi/iqn.20...or1/tpg1/luns> lso- luns &NBSP, ... ..... ..... ..... ..... ..... ..... ..... ..... .................. ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ....... .....  [LUNs: 2]  o- lun0  ............................................................. [fileio/disk01  (/LABSTOR1/DISK01.IMG)   (DEFAULT_TG_PT_GP)]  o- lun1&nbsp, ..................................................... [fileio/disk02  (/labstor1/disk02.img)   (default_tg_ PT_GP)]/iscsi/iqn.20...or1/tpg1/acls> create iqn.1994-05.com.redhat:kvmcreated node acl  for iqn.1994-05.com.redhat:kvmcreated mapped lun 1.created mapped lun  0./iscsi/iqn.20...or1/tpg1/acls> create iqn.1994-05.com.redhat:node2Created Node  Acl for iqn.1994-05.com.redhat:node2created mapped lun 1.created mapped lun  0./iscsi/iqn.20...or1/tpg1/acls> lso- acls  ...............................................................................................................  [ACLs: 2]  o- iqn.1994-05.com.redhat:kvm  ................................................................................ [mapped luns:  2]  | o- mapped_lun0&nbsp ..... ..... ..... ..... ..... ..... ....................................................... [lun0 fileio/disk01  (rw)]  | o- mapped_ Lun1 .................................................................................... [lun1  fileio/disk02  (rw)]  o- iqn.1994-05.com.redhat:node2  ... ..... .... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... .....  [mapped luns: 2]     o- mapped_lun0  ....... ..... ....................... .............................  [lun0 fileio/ disk01  (rw)]    o- mapped_lun1  ....... ..... ....................... .............................  [lun1 fileio/ disk02  (rw)

Third, client initiator connection target

1. Check if the software is installed and see the initiatorname name

[Email protected] ~]# Rpm-qa |grep iscsilibiscsi-1.9.0-7.el7.x86_ 64libvirt-daemon-driver-storage-iscsi-3.9.0-14.el7_5.2.x86_64iscsi-initiator-utils-6.2.0.873-35.el7.x86_ 64iscsi-initiator-utils-iscsiuio-6.2.0.873-35.el7.x86_64[[email protected] ~]# Rpm-qa |grep Iscsilibiscsi-1.9.0-7.el7.x86_64iscsi-initiator-utils-iscsiuio-6.2.0.874-4.el7.x86_ 64iscsi-initiator-utils-6.2.0.874-4.el7.x86_64libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.9.x86_64[[ Email protected] ~]# Vim/etc/iscsi/initiatorname.iscsiinitiatorname=iqn.1994-05.com.redhat:node2[[email protected] ~]# CAT/ETC/ISCSI/INITIATORNAME.ISCSI INITIATORNAME=IQN.1994-05.COM.REDHAT:KVM

2. Check if you can find

[Email protected] ~]# iscsiadm--mode discovery--type sendtargets--portal 172.16.216.167172.16.216.167:3260,1 Iqn.2018-05.storage.kvm.com:stor1

3. Test Mount Device

[Email protected] ~]# iscsiadm-d2-m node--login #<--login Nodes Iscsiadm:max file limits 1024x768 4096iscsiadm:libvirt-if Ace-08137b06:creating session 1/1logging in to [Iface:libvirt-iface-08137b06, target:iqn.2018-05.storage.kvm.com: Stor1, portal:172.16.216.167,3260] (multiple) Login to [Iface:libvirt-iface-08137b06, Target: Iqn.2018-05.storage.kvm.com:stor1, portal:172.16.216.167,3260] successful. [[email protected] ~]# iscsiadm-m node #<--view iSCSI Discovery Records 172.16.216.167:3260,1 iqn.2018-05.storage.kvm.com:s Tor1

4. Disconnecting from Target

[[email protected] ~]# iscsiadm-d2-m node--logout #<--exit nodes

Linux System Configuration iSCSI storage