Issue:

Unable to start iSCSI service on Redhat Enterprise Linux 6.

Symptoms:

After installing iSCSI modules using 'yum install iSCSI*', following modules were

installed by the system.

[root@redhatcentos Desktop]# rpm -qa | grep iscsi

iscsi-initiator-utils-6.2.0.873-2.el6.x86_64

iscsi-initiator-utils-devel-6.2.0.873-2.el6.x86_64

But, when trying to start the iscsi service, iscsi service remained stopped, as

shown in the example below.

[root@redhatcentos Desktop]# service iscsid status

iscsid is stopped

[root@redhatcentos Desktop]# service iscsid start

[root@redhatcentos Desktop]# service iscsid status

iscsid is stopped

# Even though service 'start' command was issued, iscsid remained stopped.

Cause:

In Red Hat Enterprise Linux 6, the iSCSI service is lazily started by default. If root is

not on an iSCSI device or there are no nodes marked with node.startup =

automatic then the iSCSI service will not start.

Ref: https://access.redhat.com/site/documentation/en-

US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/ch-

iscsi.html

Resolution:

Use iscsiadm command that requires iscsid or the iscsi kernel modules to be

started. For example, running the discovery command iscsiadm -m discovery -t st

-p ip:port will cause iscsiadmin to start the iSCSI service.

[root@redhatcentos Desktop]# iscsiadm -m discovery -t sendtargets -p

192.168.1.12

Starting iscsid: [ OK ]

192.168.1.12:3260,2 iqn.1992-08.com.netapp:sn.4055372815

[root@redhatcentos Desktop]# service iscsid status

iscsid (pid 3039) is running...

[root@redhatcentos Desktop]#

Or,

Force the iSCSI daemon to run and iSCSI kernel modules to load, run service iscsid

force-start.

ashwinwriter@gmail.com