Re: [Xen-users] can't disconnec iSCSI targets, please help

[Henrik Langos <hlangos-xen@xxxxxxxxxxxxxx>]

Hi Rudi,


logout from individual targets:

# iscsiadm -m node -p '192.168.2.200:3260' --logout -T 
'iqn.2011.01.22.freenas.nvr:500gb'



no more auto-login:

for newly discovered targets:
/etc/iscsi/iscsid.conf
...
node.startup = manual
...

for the known targets check:
find /etc/iscsi/ -type f -exec grep -H startup \{\} \;



I don't know of the top of my head if you need to change the old target config 
files or if
it is enough to change the default in /etc/iscsi/iscsid.conf and do a discover 
again.


cheers
-henrik


On Mon, Feb 28, 2011 at 12:02:11PM +0200, Rudi Ahlers wrote:
> Hi,
> 
> I'm trying to disconnect some iSCSI targets, but can't seem to.
> 
> [root@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@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@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@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@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@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@localhost ~]# cat /etc/redhat-release
> CentOS release 5.5 (Final)
> [root@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@localhost ~]#
> 


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