CentOS Install iSCSI Server side
Yum Install Scsi-target-utils
Iscsi-initiator-utils
Client Installation
iscsi-initiator-utils
scsi-target-utils The main configuration files and commands in the package:
/ETC/TGT/TARGET.CONF: Primary configuration file
/usr/sbin/tgt-admin: Online query, delete target and other functions of the command
/USR/SBIN/TGTD: Main program that mainly provides iSCSI target service
Main configuration files and commands in Iscsi-initiator-utils:
/ETC/ISCSI/ISCSID.CONF: Primary configuration file
/SBIN/ISCSID: Primary service Program to start iSCSI Initiator
/SBIN/ISCSIADM: Managing the iSCSI Initiator management program
/ETC/INTIT.D/ISCSID: Main service process
/ETC/INIT.D/ISCSI: Start the script, you can make the discovered iSCSI target configuration take effect, generally directly use the script, initiator not executed, will call/etc/init.d/iscsid boot Initiat
Server-side Simple configuration
A variety of iSCSI components are available in the target configuration file, where the simplest implementation
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IQN (iSCSI qualified Name) is used to identify the server and client for iSCSI communication in the format
Iqn.yyyy-mm.com.reverse.domain:optional-extra-name
Device name, which is a shared disk
Permission control
Executing on the client
Found
[[Email protected] ~] #iscsiadm-M discovery-t sendtargets-p 192.168.0.165
192.168.0.165:3260,1 Iqn.2015-01.com.node0:server.target2
Connection
[Email protected] ~]# iscsiadm-m node-t iqn.2015-01.com.node0:server.target2-p 192.168.0.165-l
Logging in to [Iface:default, Target:iqn.2015-01.com.node0:server.target2, portal:192.168.0.165,3260] (multiple)
Login to [Iface:default, Target:iqn.2015-01.com.node0:server.target2, portal:192.168.0.165,3260] successful
Verify that DISK/DEV/SDA appears
[Email protected] ~]# fdisk-l
disk/dev/sda:10.7 GB, 10737418240 bytes
Heads, Sectors/track, 10240 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
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iSCSI GFS Shared Storage (staging)