Dear Mike, Thank you for reply. Please refer the post with below subject posted by me on same issue, it has more detail,
"iSCSI logout all command fails with retCode 21 and then Restart iscsid, Core generated by iscsiuio" On Wednesday, September 30, 2015 at 7:26:27 AM UTC+9, Mike Christie wrote: > > On 09/28/2015 08:25 PM, Manish Singh wrote: > > > > Dear All, > > > > > > Can anyone reply on below queries? > > > > > > I have executed delete operation on a target for nodes database when > > some sessions are active. Now, when i execute following command, i > > get below error message. > > > > [root@HN0101 ~]# iscsiadm -m session > > > > tcp: [11667] 172.168.2.61:3260 <http://172.168.2.61:3260>,4 > > > iqn.2001-03.jp.nec:storage01:ist-m000-sn-0000000942901110.lx-ddsldset-0013.target0000 > > > > (non-flash) > > > > tcp: [11668] 172.168.2.61:3260 <http://172.168.2.61:3260>,4 > > > iqn.2001-03.jp.nec:storage01:ist-m000-sn-0000000942901110.lx-ddsldset-0719.target0010 > > > > (non-flash) > > > > tcp: [11669] 172.168.2.61:3260 <http://172.168.2.61:3260>,4 > > > iqn.2001-03.jp.nec:storage01:ist-m000-sn-0000000942901110.lx-ddsldset-0140.target0006 > > > > (non-flash) > > > > tcp: [11670] 172.168.2.61:3260 <http://172.168.2.61:3260>,4 > > > iqn.2001-03.jp.nec:storage01:ist-m000-sn-0000000942901110.lx-ddsldset-0127.target0003 > > > > (non-flash) > > > > tcp: [11671] 172.168.2.61:3260 <http://172.168.2.61:3260>,4 > > > iqn.2001-03.jp.nec:storage01:ist-m000-sn-0000000942901110.lx-ddsldset-0131.target0004 > > > > (non-flash) > > > > tcp: [11672] 172.168.2.61:3260 <http://172.168.2.61:3260>,4 > > > iqn.2001-03.jp.nec:storage01:ist-m000-sn-0000000942901110.lx-ddsldset-0144.target0007 > > > > (non-flash) > > > > tcp: [11673] 172.168.2.61:3260 <http://172.168.2.61:3260>,4 > > > iqn.2001-03.jp.nec:storage01:ist-m000-sn-0000000942901110.lx-ddsldset-0084.target0002 > > > > (non-flash) > > > > iscsiadm: could not read session targetname: 5 > > > > iscsiadm: could not find session info for session3076 > > > > > > I have used RHEL 6.6 linux distro and my open iscsi initiator > > version is iscsi-initiator-utils-6.2.0.873-13. > > > > In my environment, we have a RPC XML server which is written in > > python. When a client request for a operation(say operation1), we > > execute following iscsiadm command in sequence using Popen() > > interface of subprocess module in some portion of the operation, > > > > 1> Logout all session for all target, Command - "/sbin/iscsiadm > > --mode node --logoutall=all" > > 2> modify iscsi.conf file > > 3> restart iscsid. > > 4> run discovery on all portals of storage device. > > If discovery fails on all portals(N/W down or other > > reasons), then delete the nodes database for each target using > > iscsiadm utility. > > It looks like one of your steps above left a session partially setup in > the kernel. > > Why are you restarting iscsid and what command are you using to restart > it? > > > > > > > > Now, after above error has occurred, when we go to execute > > operation1, operation 2, operation 3 but not operation 4. The core > > is generated by iscsiuio. > > iscsiuio is only used for bnx2i, so it should not really come into play > other than starting and stopping if that service is being restarted > along with iscsid. You would need to attach the core so the qlogic or > Red Hat developers can look at it. > > > > > > Can any one help me to understand the cause of the problem. > > > > > > -- > > You received this message because you are subscribed to the Google > > Groups "open-iscsi" group. > > To unsubscribe from this group and stop receiving emails from it, send > > an email to [email protected] <javascript:> > > <mailto:[email protected] <javascript:>>. > > To post to this group, send email to [email protected] > <javascript:> > > <mailto:[email protected] <javascript:>>. > > Visit this group at http://groups.google.com/group/open-iscsi. > > For more options, visit https://groups.google.com/d/optout. > > -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
