Building iSCSI Shared storage

Topology:

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Experimental steps:

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Configuration iSCSI Server:

Programme 1 : (Command line configuration, immediately valid, restart invalid)

1. Add two disk devices to target, SDB,SDC

2. Install the package, start the service

# yum Install-y scsi-target-utils

# service TGTD Start

3. Create target

# tgtadm--lld/dev/sdb--mode target--op new--tid 1--targetname iqn.2015-01.com.liaobin:i1.c2

4. Create LUNs

# Tgtadm--lld iSCSI--mode logicalunit--op New--tid 1--lun 1--backing-store/dev/sdb

# Tgtadm--lld iSCSI--mode logicalunit--op new--tid 1--lun 2--BACKING-STORE/DEV/SDC

# Tgtadm--lld iSCSI--mode logicalunit--op Delete--tid 1--lun 1 #删除lun的方法

5. Authorization

# Tgtadm--lld iSCSI--mode target--op bind--tid 1--initiator-address 192.168.191.0/24 # Limit only 192.168.191.0 the network segment can be accessed

6 , view information that has already been defined

# Tgtadm--LLD iSCSI--mode Target--op Show

Programme 2 : (defined in configuration file, restart valid)

1 , Edit /etc/tgt/targets.conf

<target iqn.2015-01.com.liaobin:i1.c2>

Backing-store/dev/sdb

Backing-store/dev/sdc

Initiator-address 192.168.191.0/24

</target>

2 , Restart TGTD Service;

# service TGTD Re Start

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Configuration iSCSI Client Initiator (Node 1 , 2 are required to do the following):

1. Install package

# Yum install-y iscsi-initiator-utils

2 , Configuration Initiator's name. (Configuration document :/etc/iscsi/initiatorname.iscsi )

# echo "Initiatorname= ' iscsi-iname-p iqn.2015-01.com.liaobin '" >/etc/iscsi/initiatorname.iscsi ( Generate random numbers using the Iscsi-iname command)

3 , Start the service

# service iSCSI Start

# service Iscsid Start

4 , using iscsiadm realization of target discovery

Basic Format: iscsiadm-m discovery-d #-T sendtargets-p ip[:P ORT]

# iscsiadm-m discovery-d 3-t sendtargets-p 192.168.191.113:3260

#发现 Target - M Mode - D Debug Level - T type (Sendtargets can be abbreviated as St ) - P Service Side IP

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5 , log in, log out

Basic format: iscsiadm-m node [-D debug_level] [[-t targetname-p ip:port-i Ifacen] [-L |-u |-r |-S]] [[-O Operatio N]

# iscsiadm-m node-d 1-t iqn.2015-01.com.liaobin:i1.c2-p 192.168.191.113:3260-l #登入

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# iscsiadm-m node-d 1-t iqn.2015-01.com.liaobin:i1.c2-p 192.168.191.113:3260-u #登出

# iscsiadm-m node-d 1-t iqn.2015-01.com.liaobin:i1.c2-p 192.168.191.113:3260-o Delete #删除指定条目

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Test:

(on a node 1 operation)

1 , View disk-free devices

# Fdisk-l # See if there are more out SDB , SDC , if any, the login is successful and can be partitioned and mounted using

2 , new partition

# FDISK/DEV/SDC # Create a new partition

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3 , format file system

# mke2fs-t EXT4/DEV/SDC1

4 , Mount

# mount/dev/sdc1/mnt # Create a file system and mount it to /mnt

5 , create a test file, switch to another Initiator node Mount /DEV/SDC1 To see if a file exists

# Touch Test.txt; echo "This was Test line" > Test.txt

(Node 2 on the operation)

1 , Check for disk-free devices and mount them using

# fdisk-l

2 , directly mount the node just now 1 partition that created the file system /DEV/SDC1

# mount/dev/sdc1/mnt

3 , switch to /mnt directory to see if the file is normal

# Cd/mnt;ls

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# cat Test.txt

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Show Normal, description create iSCSI the shared storage is successful and the test is complete.

This article is from the "Operations" blog, please be sure to keep this source http://laoliao.blog.51cto.com/10027070/1731879

Building iSCSI Shared storage