CentOS 6.8 Linux iSCSI Server Configuration and Client connection iSCSI

CentOS 6.8 Linux iSCSI Server Configuration and Client connection iSCSI

First, the service-side configuration

1, first install a variety of packages

Yum Search SCSI

ISCSI-INITIATOR-UTILS.X86_64:ISCSI Daemon and utility programs

iscsi-initiator-utils-devel.x86_64:development files for Iscsi-initiator-utils

Lsscsi.x86_64:List SCSI devices (or hosts) and associated information

Scsi-target-utils.x86_64:the SCSI target daemon and utility programs

LIBHBALINUX.I686:FC-HBAAPI implementation using SCSI_TRANSPORT_FC interfaces

LIBHBALINUX.X86_64:FC-HBAAPI implementation using SCSI_TRANSPORT_FC interfaces

Mtx.x86_64:SCSI Media Changer Control program

Python-rtslib.noarch:api for risingtide Systems generic SCSI target

Sdparm.x86_64:List or change scsi/sata disk parameters

Sg3_utils.x86_64:Utilities for Devices This use SCSI command sets

Execute yum install-y scsi-target-utils.x86_64 iscsi-initiator-utils.x86_64 iscsi-initiator-utils-devel.x86_64

It doesn't hurt to have more decorations.

The machine is divided into 100G, in the installation of the system when the 20G, the remaining 80G useless

2. Create a partition

Fdisk/dev/sda

I'm building a three//build partition Step Over

Partition Setup must execute Partprobe command, write into kernel

[Email protected] 1]# fdisk-l

disk/dev/sda:107.4 GB, 107374182400 bytes

255 heads, Sectors/track, 13054 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x000af23c

Device Boot Start End Blocks Id System

/DEV/SDA1 * 1 2611 20971520 Linux

/dev/sda2 2611 3916 10482726-up Linux

/dev/sda3 3917 6528 20980890-up Linux

/DEV/SDA4 6529 13054 52420095-up Linux

3. Configure TGTD

Vi/etc/tgt/targets.conf

Add the following configuration at the end

<target iqn.2008-09.com.example:server.target4>

Direct-store/dev/sda2 # becomes LUN 1

Direct-store/dev/sda3 # becomes LUN 2

DIRECT-STORE/DEV/SDA4 # becomes LUN 3

Initiator-address 10.0.1.2//allowed IP address of the connection

Initiator-address 10.0.1.3

Write-cache off

</target>

Configuration complete, start service

Service TGTD Start

Chkconfig TGTD on

View target Status

[Email protected] ~]# tgt-admin--show

Target 1:iqn.2008-09.com.example:server.target4

System Information:

Driver:iscsi

State:ready

i_t Nexus Information:

i_t nexus:1

initiator:iqn.1994-05.com.redhat:74bc8f791621

connection:0

IP address:10.0.1.3

i_t Nexus:2

initiator:iqn.1994-05.com.redhat:9695b6e4df6f

connection:0

IP address:10.0.1.2

LUN Information:

lun:0

Type:controller

SCSI Id:iet 00010000

SCSI SN:BEAF10

size:0 MB, Block size:1

Online:yes

Removable Media:no

Prevent Removal:no

Readonly:no

Backing store Type:null

Backing store Path:none

Backing Store Flags:

Lun:1

Type:disk

SCSI Id:iet 00010001

SCSI sn:beaf11

size:10734 MB, Block size:512

Online:yes

Removable Media:no

Prevent Removal:no

Readonly:no

Backing store Type:rdwr

Backing store Path:/dev/sda2

Backing Store Flags:

Lun:2

Type:disk

SCSI Id:iet 00010002

SCSI SN:BEAF12

size:21484 MB, Block size:512

Online:yes

Removable Media:no

Prevent Removal:no

Readonly:no

Backing store Type:rdwr

Backing store Path:/dev/sda3

Backing Store Flags:

Lun:3

Type:disk

SCSI Id:iet 00010003

SCSI sn:beaf13

size:53678 MB, Block size:512

Online:yes

Removable Media:no

Prevent Removal:no

Readonly:no

Backing store Type:rdwr

Backing store Path:/DEV/SDA4

Backing Store Flags:

Account information:

ACL Information:

10.0.1.2

10.0.1.3

Second, the client configuration

1. Install packages

   Yum install-y iscsi-initiator-utils.x86_64 iscsi-initiator-utils-devel.x86_64
   

   Service Iscsid Restart

Chkconfig Iscsid on

2. Finding storage in the Discovery network

[Email protected] ~]# iscsiadm-m discovery-t node

10.0.1.1:3260 via Sendtargets

192.168.1.141:3260 via Sendtargets

192.168.10.100:3260 via Sendtargets

192.168.10.100:3205 via Sendtargets

10.0.1.1:3205 via Sendtargets

3. Connect iSCSI

ISCSIADM-M node//Discovery Nodes

[Email protected] ~]# iscsiadm-m node

10.0.1.1:3260,1 Iqn.2008-09.com.example:server.target4

192.168.1.141:3260,1 Iqn.2008-09.com.example:server.target4

Iscsiadm-m discovery-t st-p 10.0.1.1:3260//Connected

Iscsiadm-m node-t iqn.2008-09.com.example:server.target4-p 10.0.1.1-l

Login Complete

Perform fdisk to see if the connection was successful

[Email protected] ~]# fdisk-l

disk/dev/sda:107.4 GB, 107374182400 bytes

255 heads, Sectors/track, 13054 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x000af23c

Device Boot Start End Blocks Id System

/DEV/SDA1 * 1 2611 20971520 Linux

disk/dev/sdb:10.7 GB, 10734311424 bytes

Heads, Sectors/track, 10237 cylinders

Units = Cylinders of 2048 * 1048576 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x00000000

disk/dev/sdd:53.7 GB, 53678177280 bytes

Heads, Sectors/track, 51191 cylinders

Units = Cylinders of 2048 * 1048576 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x00000000

disk/dev/sdc:21.5 GB, 21484431360 bytes

Heads, Sectors/track, 20489 cylinders

Units = Cylinders of 2048 * 1048576 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x00000000

has successfully connected.

This article is from the "袁喆玺 blog" blog, make sure to keep this source http://yuanzhexi.blog.51cto.com/7786823/1839803

CentOS 6.8 Linux iSCSI Server Configuration and Client connection iSCSI