[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' . . . -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]# |
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]# |
We need to copy the sample ietd.conf to /etc and edit:
[root@srv-3 iscsitarget-0.3.4]# vi /etc/ietd.conf |
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 |
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 ] |
Let’s check out our logs and see if all is fab:
[root@srv-3 iscsitarget-0.3.4]# dmesg . . . 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 . . . 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]# |
All is fab!
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
