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

To: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>

Date: Mon, 28 Feb 2011 14:44:28 +0200

Delivery-date: Mon, 28 Feb 2011 04:46:08 -0800

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List-id: Xen user discussion <xen-users.lists.xensource.com>

On Mon, Feb 28, 2011 at 12:02 PM, Rudi Ahlers <Rudi@xxxxxxxxxxx> 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 ~]# > > -- > Kind Regards > Rudi Ahlers > SoftDux > > Website: http://www.SoftDux.com > Technical Blog: http://Blog.SoftDux.com > Office: 087 805 9573 > Cell: 082 554 7532 > > _______________________________________________ > Xen-users mailing list > Xen-users@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-users > This is driving me nuts! Does anyone know if this is a bug, or am I doing something wrong? I searched the RHEL bug list, but can't find anything related to this. Some other people (via google search) seems to have simila problems, but I can't see any fixes on the web. I can logout out of all sessions, but as soon as I restart iscsi, the sessions gets restored again: [root@localhost ~]# fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 121584 976519057+ 8e Linux LVM Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 13 104391 83 Linux /dev/sdb2 14 121584 976519057+ 8e Linux LVM Disk /dev/sdc: 1084.4 GB, 1084480290816 bytes 255 heads, 63 sectors/track, 131847 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sdc doesn't contain a valid partition table Disk /dev/sdd: 539.7 GB, 539771273216 bytes 255 heads, 63 sectors/track, 65623 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdd1 1 65623 527116716 fd Linux raid autodetect Disk /dev/sde: 536.8 GB, 536870912000 bytes 255 heads, 63 sectors/track, 65270 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sde doesn't contain a valid partition table Disk /dev/sdf: 536.8 GB, 536870912000 bytes 255 heads, 63 sectors/track, 65270 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdf1 1 65270 524281243+ fd Linux raid autodetect [root@localhost ~]# iscsiadm -m node -u 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 So, iscsi logs out of the targets, and fdisk -l confirms it: [root@localhost ~]# fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 121584 976519057+ 8e Linux LVM Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 13 104391 83 Linux /dev/sdb2 14 121584 976519057+ 8e Linux LVM But as soon as I restart iscsi, it logs back-in: [root@localhost ~]# /etc/init.d/iscsi restart 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. Why? Or, how do I completely get rid of them? -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users

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