OpenStack Cinder: iSCSI login negotiation failure after reboot

Question

I have a Cinder storage and controller node running on the same CentOS 7 box as Nova compute. Everything worked fine, until I rebooted. Now my instances can't mount volumes and I get the errors below.

dmesg:

[  923.546115] scsi5 : iSCSI Initiator over TCP/IP
[  923.560908] iSCSI Initiator Node: iqn.1994-05.com.redhat:c87d91366225 is not authorized to access iSCSI target portal group: 1.
[  923.561124] iSCSI Login negotiation failed.
[  923.561207]  connection3:0: detected conn error (1020)

nova-compute.log:

2015-01-28 14:51:42.460 1962 TRACE oslo.messaging.rpc.dispatcher ProcessExecutionError: Unexpected error while running command.
2015-01-28 14:51:42.460 1962 TRACE oslo.messaging.rpc.dispatcher Command: sudo nova-rootwrap /etc/nova/rootwrap.conf iscsiadm -m node -T iqn.2010-10.org.openstack:volume-ce40f03f-4d2e-4af7-9157-753f33bd0fd0 -p 192.168.11.212:3260 --rescan
2015-01-28 14:51:42.460 1962 TRACE oslo.messaging.rpc.dispatcher Exit code: 21
2015-01-28 14:51:42.460 1962 TRACE oslo.messaging.rpc.dispatcher Stdout: u''
2015-01-28 14:51:42.460 1962 TRACE oslo.messaging.rpc.dispatcher Stderr: u'iscsiadm: No session found.\n'

Output of service iscsid status -l:

Jan 28 14:41:47 alpsose01.ovationpayroll.com iscsid[4391]: conn 0 login rejected: initiator failed authorization with target
Jan 28 14:41:47 alpsose01.ovationpayroll.com iscsid[4391]: Connection2:0 to [target: iqn.2010-10.org.openstack:volume-088b52de-9422-44f3-ae3c-e48b62863081, portal: 192.168.1.212,3260] through [iface: default] is shutdown.
Jan 28 14:51:42 alpsose01.ovationpayroll.com iscsid[4391]: conn 0 login rejected: initiator failed authorization with target
Jan 28 14:51:42 alpsose01.ovationpayroll.com iscsid[4391]: Connection3:0 to [target: iqn.2010-10.org.openstack:volume-ce40f03f-4d2e-4af7-9157-753f33bd0fd0, portal: 192.168.1.212,3260] through [iface: default] is shutdown.

target.service is started with no errors and my iSCSI configuration is not using ACLs. cinder-scheduler and cinder-volume services are both in the down state, even though they're enabled.

I've searched and found others with this problem, but no solutions. Any help is appreciated!

Solution

Added the following to /etc/cinder/cinder.conf on the storage node:

[DEFAULT]
enabled_backends=lvm57
[lvm57]
iscsi_helper=lioadm
volume_group=cinder-volumes
volume_driver=cinder.volume.drivers.lvm.LVMISCSIDriver
iscsi_ip_address=192.168.186.168
volume_backend_name=LVM_iSCSI

https://ask.openstack.org/en/question/55529/couldnt-start-any-instances-after-cinder-rebooted/