linux iSCSI target配置全过程
一:Install iSCSI target for
Linux
1，操作系统：
[[email protected] ~]# cat /etc/issue
Enterprise Linux Enterprise
Linux AS release 4 (October Update 4)
Kernel r on an m
[[email protected] /]# uname -a
Linux rac2.mycorpdomain.com 2.6.9-42.0.0.0.1.ELsmp
#1 SMP Sun Oct 15 14:02:40 PDT 2006 i686 i686 i386 GNU/Linux
[[email protected] /]#
2，解压文件
[[email protected] ~]# tar -xzvf iscsitarget-0.4.15.tar.gz
3，编译
[[email protected] ~]# cd iscsitarget-0.4.15
[[email protected]
iscsitarget-0.4.15]# ls
ChangeLog COPYING doc etc include kernel Makefile
patches README README.vmware usr
[[email protected] iscsitarget-0.4.15]# make
Applying Patch compat-2.6.14-2.6.18.patch
patching file
kernel/iscsi.h
patching file kernel/digest.c
patching file
kernel/file-io.c
。。。
[[email protected] iscsitarget-0.4.15]# make install
install: creating directory
`/lib/modules/2.6.9-42.0.0.0.1.ELsmp/kernel/iscsi‘
`kernel/iscsi_trgt.ko‘
-> `/lib/modules/2.6.9-42.0.0.0.1.ELsmp/kernel/iscsi/iscsi_trgt.ko‘
depmod
-aq
`usr/ietd‘ -> `/usr/sbin/ietd‘
`usr/ietadm‘ ->
`/usr/sbin/ietadm‘
`etc/initd/initd.redhat‘ ->
`/etc/init.d/iscsi-target‘
`etc/ietd.conf‘ ->
`/etc/ietd.conf‘
`etc/initiators.allow‘ ->
`/etc/initiators.allow‘
`etc/initiators.deny‘ ->
`/etc/initiators.deny‘
`doc/manpages/ietadm.8‘ ->
`/usr/share/man/man8/ietadm.8‘
`doc/manpages/ietd.8‘ ->
`/usr/share/man/man8/ietd.8‘
`doc/manpages/ietd.conf.5‘ ->
`/usr/share/man/man5/ietd.conf.5‘
install: creating directory
`/usr/share/doc/iscsitarget‘
`ChangeLog‘ ->
`/usr/share/doc/iscsitarget/ChangeLog‘
`COPYING‘ ->
`/usr/share/doc/iscsitarget/COPYING‘
`README‘ ->
`/usr/share/doc/iscsitarget/README‘
`README.vmware‘ ->
`/usr/share/doc/iscsitarget/README.vmware‘
[[email protected] iscsitarget-0.4.15]#
4,配置
[[email protected] iscsitarget-0.4.15]# vi /etc/ietd.conf
User userid superpassword
Target
iqn.2001-04.com.example:storage.disk2.sys1.xyz
Lun 0 /dev/sdb1
fileio
Alias lun0
5,启动服务
[[email protected] etc]# cd /etc/init.d
[[email protected] init.d]#
ls
acpid crond halt killall netplugd openibd rhnsd snmpd xfs
anacron cups
hidd kudzu network oracleasm rpcgssd snmptrapd xinetd
apmd cups-config-daemon
ibmasm lm_sensors NetworkManager pand rpcidmapd spamassassin
ypbind
arptables_jf diskdump ipmi mdmonitor nfs pcmcia rpcsvcgssd sshd
yum
atd dund iptables mdmpd nfslock portmap rwhod syslog
auditd firstboot
irda messagebus nscd psacct saslauthd sysstat
autofs functions irqbalance
microcode_ctl ntpd rawdevices sendmail tog-pegasus
bluetooth gpm iscsi-target
netdump o2cb readahead single vncserver
cpuspeed haldaemon isdn netfs ocfs2
readahead_early smartd winbind
[[email protected] init.d]# /etc/init.d/iscsi-target
start
Starting iSCSI target service: [ OK ]
[[email protected] init.d]#
6,察看验证
dmesg
iSCSI Enterprise Target Software - version 0.4.15
iotype_init(92) register
fileio
iotype_init(92) register blockio
iotype_init(92) register
nullio
parse_fileio_params(230) Unknown /dev/sdb1
fileio
fileio_attach(268) -22
[[email protected] init.d]#
[[email protected] init.d]# tailf /var/log/messages
Oct 24 09:22:13 rac2
ntpd[2995]: kernel time sync disabled 0041
Oct 24 09:23:16 rac2 ntpd[2995]:
kernel time sync enabled 0001
Oct 24 09:24:15 rac2 kernel: iSCSI Enterprise
Target Software - version 0.4.15
Oct 24 09:24:15 rac2 kernel: iotype_init(92)
register fileio
Oct 24 09:24:15 rac2 kernel: iotype_init(92) register
blockio
Oct 24 09:24:15 rac2 kernel: iotype_init(92) register nullio
Oct
24 09:24:15 rac2 iscsi-target: ietd startup succeeded
Oct 24 09:24:15 rac2
kernel: parse_fileio_params(230) Unknown /dev/sdb1 fileio
Oct 24 09:24:15
rac2 kernel: fileio_attach(268) -22
Oct 24 09:24:15 rac2 ietd: Can‘t create a
logical unit 22 1 0 /dev/sdb1 fileio
7,修改配置文件为：
Target
iqn.2001-04.com.example:storage.disk2.sys1.idisk
Lun 4
Path=/dev/sdb1,Type=fileio（注意T字母大写）
Alias sdb
然后启动的时候dmesg信息为：
iSCSI Enterprise Target Software - version
0.4.15
iotype_init(92) register fileio
iotype_init(92) register
blockio
iotype_init(92) register nullio
日志信息：
Oct 25 16:31:35 test kernel: iSCSI Enterprise Target Software -
version 0.4.15
Oct 25 16:31:35 test kernel: iotype_init(92) register
fileio
Oct 25 16:31:35 test kernel: iotype_init(92) register blockio
Oct
25 16:31:35 test kernel: iotype_init(92) register nullio
二，Red Hat linux iSCSI initiator
configuration
1，操作系统：
[[email protected] ~]# cat /etc/issue
Enterprise Linux
Enterprise Linux AS release 4 (October Update 4)
Kernel r on an m
[[email protected] ~]#
2，安装initiator
[[email protected] ~]# rpm -ivh
iscsi-initiator-utils-4.0.3.0-4.i386.rpm
warning:
iscsi-initiator-utils-4.0.3.0-4.i386.rpm: V3 DSA signature: NOKEY, key ID
db42a60e
Preparing... ###########################################
[100%]
1:iscsi-initiator-utils ###########################################
[100%]
[[email protected] ~]#
3，修改/etc/iscsid.conf 文件
vi /etc/iscsid.conf
修改下面3项：
DiscoveryAddress=<IP Address>
This needs to be set to the
Group IP Address of your UIT Array.
SendAsyncText=yes
For the initiator to receive Vendor Specific async
events from the target.
Continuous=yes
To globally specify that all discovery sessions be kept
open.
4，启动服务
[[email protected] etc]# service iscsi start
Checking iscsi config: [ OK
]
Loading iscsi driver: [ OK ]
mknod: `/dev/iscsictl‘: File
exists
Starting iscsid: [ OK ]
[[email protected] etc]#
5,设置iscsi服务
[[email protected] etc]# chkconfig --list iscsi
iscsi 0:off 1:off
2:off 3:off 4:off 5:off 6:off
[[email protected] etc]# chkconfig --add
iscsi
[[email protected] etc]# chkconfig --add iscsi
[[email protected] etc]# chkconfig
iscsi on
[[email protected] etc]# chkconfig --list iscsi
iscsi 0:off 1:off 2:on
3:on 4:on 5:on 6:off
6，察看scsi设备
[[email protected] etc]#
iscsi-ls
*******************************************************************************
SFNet
iSCSI Driver Version
...4:0.1.11-3(02-May-2006)
*******************************************************************************
[[email protected]
etc]#
7, 正常情况下应该是:
[[email protected] ~]# iscsi-ls
*******************************************************************************
SFNet
iSCSI Driver Version
...4:0.1.11-3(02-May-2006)
*******************************************************************************
TARGET
NAME : iqn.2001-04.com.example:storage.disk2.sys1.idisk
TARGET ALIAS :
HOST ID : 6
BUS ID : 0
TARGET ID : 0
TARGET ADDRESS :
172.25.1.100:3260,1
SESSION STATUS : ESTABLISHED AT Thu Oct 25 00:46:13 CST
2007
SESSION ID : ISID 00023d000001 TSIH
200
*******************************************************************************
[[email protected]
~]#
8,通过dmesg可以看到新增加的设备。