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Subject
[See This article for a newer procedure.] An iSCSI target is the server piece of an iSCSI SAN. The client piece/driver is called the initiator. We will be running the target on a GNU/Linux box with a 2.4.27 kernel, and will run the initiator on a Windows 2000 server.
For our iSCSI target, we will use the source from the iSCSI Enterprise Target Project. Let's uncompress the source and compile for our kernel:
[root@srv-3 src]# tar -xzf iscsitarget-0.3.4.tar.gz
[root@srv-3 src]# cd isc*
[root@srv-3 iscsitarget-0.3.4]# ls
ChangeLog ietd.conf iscsid Makefile README
COPYING include kernel man scripts
[root@srv-3 iscsitarget-0.3.4]# make KERNELSRC=../linux-2.4.27
make -C iscsid
make[1]: Entering directory `/usr/src/iscsitarget-0.3.4/iscsid'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/usr/src/iscsitarget-0.3.4/iscsid'
make modules -C ../linux-2.4.27 SUBDIRS=/usr/src/iscsitarget-0.3.4/kernel
make[1]: Entering directory `/usr/src/linux-2.4.27'
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-DKBUILD_BASENAME=file_io -c -o file-io.o file-io.c
make[2]: Leaving directory `/usr/src/iscsitarget-0.3.4/kernel'
make[1]: Leaving directory `/usr/src/linux-2.4.27'
[root@srv-3 iscsitarget-0.3.4]#
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Let's install the modules:
[root@srv-3 iscsitarget-0.3.4]# make KERNELSRC=../linux-2.4.27 install
`iscsid/ietd' -> `/usr/sbin/ietd'
`iscsid/ietadm' -> `/usr/sbin/ietadm'
if [ -f /etc/debian_version ]; then \
install -v -m 755 scripts/initd.debian /etc/init.d/iscsi-target; \
elif [ -f /etc/redhat-release ]; then \
install -v -m 755 scripts/initd.redhat /etc/init.d/iscsi-target; \
else \
install -v -m 755 scripts/initd /etc/init.d/iscsi-target; \
fi
`scripts/initd.redhat' -> `/etc/init.d/iscsi-target'
install: creating directory `/lib/modules/2.4.27/kernel/iscsi'
`kernel/iscsi_trgt.o' -> `/lib/modules/2.4.27/kernel/iscsi/iscsi_trgt.o'
`kernel/file-io.o' -> `/lib/modules/2.4.27/kernel/iscsi/fileio.o'
depmod -aq
[root@srv-3 iscsitarget-0.3.4]#
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We need to copy the sample ietd.conf to /etc and edit:
[root@srv-3 iscsitarget-0.3.4]# vi /etc/ietd.conf
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The only lines we modified are:
User userid superpassword
Target iqn.2004-09.com.signalq:storage.lvm
Lun 0 /dev/volgroup/logicalvol fileio
Alias LVMVOL
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We are exporting the logical volume we created in this series of articles. This is a pair of RAID1 devices that create one logical volume. The startup script for the iSCSI daemon is iscsi-target. Let's start it up:
[root@srv-3 iscsitarget-0.3.4]# ls /etc/init.d
anacron functions iscsi-target named ntpd rhnsd sshd
apmd gpm isdn netfs pcmcia saslauthd syslog
atd halt kdcrotate network portmap sendmail winbind
autofs httpd killall nfs postfix single xfs
crond iptables kudzu nfslock random snmpd xinetd
cups irda messagebus nscd rawdevices snmptrapd ypbind
[root@srv-3 iscsitarget-0.3.4]#
[root@srv-3 iscsitarget-0.3.4]# /etc/init.d/iscsi-target start
Starting iSCSI target service: [ OK ]
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Let's check out our logs and see if all is fab:
[root@srv-3 iscsitarget-0.3.4]# dmesg
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init_fileio(233) register fileio
iet_target_param_set(128) d 1 8192 262144 65536 2 20 8 0
[root@srv-3 iscsitarget-0.3.4]#
[root@srv-3 iscsitarget-0.3.4]# tail /var/log/messages
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Oct 19 03:51:34 srv-3 kernel: init_fileio(233) register fileio
Oct 19 03:51:34 srv-3 kernel: iet_target_param_set(128) d 1 8192 262144 65536 2 20 8 0
Oct 19 03:51:34 srv-3 iscsi-target: ietd startup succeeded
[root@srv-3 iscsitarget-0.3.4]#
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All is fab!
Next
There are 6 parts to this article:
Part 1 - Setting up the Target on GNU/Linux
Part 2 - Setting up a Windows Initiator - Initial Install
Part 3 - Setting up a Windows Initiator - Finish Install
Part 4 - Setting up a Windows Initiator - iSCSI Setup
Part 5 - Setting up a Windows Initiator - Creating the Drive
Part 6 - Setting up a Windows Initiator - Finishing Up
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