[CentOS] can't disconnec iSCSI targets, please help

Mon Feb 28 10:02:15 UTC 2011
Rudi Ahlers <Rudi at SoftDux.com>

Hi,

I'm trying to disconnect some iSCSI targets, but can't seem to.

[root at localhost ~]# iscsiadm -m session
tcp: [1] 192.168.2.202:3260,1 iqn.2011.01.22.freenas.nvr:500gb
tcp: [3] 192.168.2.200:3260,1 iqn.2011-2.za.co.securehosting:RAID.thin3.vg0.1tba
tcp: [4] 192.168.2.202:3260,1 iqn.2011.01.22.freenas.nvr:extent0
tcp: [5] 192.168.2.200:3260,1
iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb

I need to disconnect all 4 of these

[root at localhost ~]# iscsiadm -m node -T   192.168.2.200:3260,1
iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb -p 196.34.136.200
--logout

The target is still there, even though I tell it to disconnect.

[root at localhost ~]# iscsiadm -m session
tcp: [1] 192.168.2.202:3260,1 iqn.2011.01.22.freenas.nvr:500gb
tcp: [3] 192.168.2.200:3260,1 iqn.2011-2.za.co.securehosting:RAID.thin3.vg0.1tba
tcp: [4] 192.168.2.202:3260,1 iqn.2011.01.22.freenas.nvr:extent0
tcp: [5] 192.168.2.200:3260,1
iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb

I can't delete it either:
[root at localhost ~]# iscsiadm -m node --op delete --targetname
192.168.2.202:3260,1 iqn.2011.01.22.freenas.nvr:500gb
iscsiadm: no records found!

Restarting iscsi gives some odd errors:


[root at localhost ~]# /etc/init.d/iscsi restart
Logging out of session [sid: 1, target:
iqn.2011.01.22.freenas.nvr:500gb, portal: 192.168.2.202,3260]
Logging out of session [sid: 3, target:
iqn.2011-2.za.co.securehosting:RAID.thin3.vg0.1tba, portal:
192.168.2.200,3260]
Logging out of session [sid: 4, target:
iqn.2011.01.22.freenas.nvr:extent0, portal: 192.168.2.202,3260]
Logging out of session [sid: 5, target:
iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb, portal:
192.168.2.200,3260]
Logout of [sid: 1, target: iqn.2011.01.22.freenas.nvr:500gb, portal:
192.168.2.202,3260]: successful
Logout of [sid: 3, target:
iqn.2011-2.za.co.securehosting:RAID.thin3.vg0.1tba, portal:
192.168.2.200,3260]: successful
Logout of [sid: 4, target: iqn.2011.01.22.freenas.nvr:extent0, portal:
192.168.2.202,3260]: successful
Logout of [sid: 5, target:
iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb, portal:
192.168.2.200,3260]: successful
Stopping iSCSI daemon:
iscsid dead but pid file exists                            [  OK  ]
Starting iSCSI daemon:                                     [  OK  ]
                                                           [  OK  ]
Setting up iSCSI targets: Logging in to [iface: default, target:
iqn.2011.01.22.freenas.nvr:500gb, portal: 192.168.2.202,3260]
Logging in to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.thin1.vg0.2tb, portal:
192.168.2.200,3260]
Logging in to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.thin3.vg0.1tba, portal:
192.168.2.200,3260]
Logging in to [iface: default, target:
iqn.2011.01.22.freenas.nvr:extent0, portal: 192.168.2.202,3260]
Logging in to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb, portal:
192.168.2.200,3260]
Logging in to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.thin2.vg0.1tb, portal:
192.168.2.200,3260]
Login to [iface: default, target: iqn.2011.01.22.freenas.nvr:500gb,
portal: 192.168.2.202,3260]: successful
iscsiadm: Could not login to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.thin1.vg0.2tb, portal:
192.168.2.200,3260]:
iscsiadm: initiator reported error (19 - encountered non-retryable
iSCSI login failure)
Login to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.thin3.vg0.1tba, portal:
192.168.2.200,3260]: successful
Login to [iface: default, target: iqn.2011.01.22.freenas.nvr:extent0,
portal: 192.168.2.202,3260]: successful
Login to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb, portal:
192.168.2.200,3260]: successful
iscsiadm: Could not login to [iface: default, target:
iqn.2011-2.za.co.securehosting:RAID.thin2.vg0.1tb, portal:
192.168.2.200,3260]:
iscsiadm: initiator reported error (19 - encountered non-retryable
iSCSI login failure)
iscsiadm: Could not log into all portals. Err 19.




Interestingly, the targets which iscsi reports as not existing, does exist:

[root at localhost ~]# iscsiadm -m discovery -t sendtargets -p  192.168.2.200
192.168.2.200:3260,1 iqn.2011-2.za.co.securehosting:RAID.thin1.vg0.2tb
192.168.2.200:3260,1 iqn.2011-2.za.co.securehosting:RAID.thin3.vg0.1tba
192.168.2.200:3260,1 iqn.2011-2.za.co.securehosting:RAID.iscsi0.vg0.500gb
192.168.2.200:3260,1 iqn.2011-2.za.co.securehosting:RAID.thin2.vg0.1tb





Is there any other way to force these disconnects, and re-connect them?
The machine runs on CentOS 5.5 x64 + XEN:

[root at localhost ~]# cat /etc/redhat-release
CentOS release 5.5 (Final)
[root at localhost ~]# uname -a
Linux localhost.localdomain 2.6.18-194.el5xen #1 SMP Fri Apr 2
15:34:40 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
[root at localhost ~]#



-- 
Kind Regards
Rudi Ahlers
SoftDux

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