Hi Team, We have changed the Unity storage ports from 1Gig to 10Gig. After that we have deleted the old iqn's from storage level and compute level.
old iqn's : 170.0.0.10 170.0.0.11 New 10Gig iqn's : 170.0.0.20 170.0.0.21 After deleting old iqn's we are able to access the storage at compute level, that storage is assigned to openstack vm. We have rebooted one compute host, after that we are unable to access the storage and the openstack vm is going to error state. As per the nova-compute logs, the nova is trying to search for old iqn's which is not present that's the reason vm is going to error state. Could you please find the below logs and advise further... root@compute75 ~]# iscsiadm -m session tcp: [1] 170.0.0.11:3260,8 iqn.1992-04.com.emc:cx.ckm00185002995.b0 (non-flash) tcp: [2] 170.0.0.10:3260,9 iqn.1992-04.com.emc:cx.ckm00185002995.a0 (non-flash) tcp: [3] 170.0.0.20:3260,7 iqn.1992-04.com.emc:cx.ckm00185002995.a1 (non-flash) tcp: [4] 170.0.0.21:3260,6 iqn.1992-04.com.emc:cx.ckm00185002995.b1 (non-flash) We have rebooted the old iqn's from compute level, Storage team already removed 1Gig ports from Unity storage side. [root@compute75 ~]# iscsiadm -m node -T iqn.1992-04.com.emc:cx.ckm00185002995.b0 -p 170.0.0.11 -u Logging out of session [sid: 1, target: iqn.1992-04.com.emc:cx.ckm00185002995.b0, portal: 170.0.0.11,3260] Logout of [sid: 1, target: iqn.1992-04.com.emc:cx.ckm00185002995.b0, portal: 170.0.0.11,3260] successful. [root@compute75 ~]# iscsiadm -m node -T iqn.1992-04.com.emc:cx.ckm00185002995.a0 -p 170.0.0.10 -u Logging out of session [sid: 2, target: iqn.1992-04.com.emc:cx.ckm00185002995.a0, portal: 170.0.0.10,3260] Logout of [sid: 2, target: iqn.1992-04.com.emc:cx.ckm00185002995.a0, portal: 170.0.0.10,3260] successful. [root@compute75 ~]# iscsiadm -m node -o delete -T iqn.1992-04.com.emc:cx.ckm00185002995.b0 [root@compute75 ~]# iscsiadm -m node -o delete -T iqn.1992-04.com.emc:cx.ckm00185002995.a0 [root@compute75 ~]# [root@compute75 ~]# systemctl restart iscsi [root@compute75 ~]# systemctl restart multipathd Try `iscsiadm --help' for more information. [root@compute75 ~]# iscsiadm --m node 170.0.0.20:3260,7 iqn.1992-04.com.emc:cx.ckm00185002995.a1 170.0.0.21:3260,6 iqn.1992-04.com.emc:cx.ckm00185002995.b1 [root@compute75 ~]# After reboot of the compute host root@compute75 ~]# iscsiadm --m session tcp: [3] 170.0.0.20:3260,7 iqn.1992-04.com.emc:cx.ckm00185002995.a1 (non-flash) tcp: [4] 170.0.0.21:3260,6 iqn.1992-04.com.emc:cx.ckm00185002995.b1 (non-flash) [root@compute75 ~]# multipath -ll mpathb (36006016029104b0084e7955d71109aa0) dm-1 DGC ,VRAID size=1.0G features='2 queue_if_no_path retain_attached_hw_handler' hwhandler='1 alua' wp=rw |-+- policy='service-time 0' prio=50 status=active | `- 10:0:0:12395 sdm 8:192 active ready running `-+- policy='service-time 0' prio=10 status=enabled `- 11:0:0:12395 sdn 8:208 active ready running mpatha (36006016029104b0050e3955d0d37f4ae) dm-0 DGC ,VRAID size=10G features='2 queue_if_no_path retain_attached_hw_handler' hwhandler='1 alua' wp=rw |-+- policy='service-time 0' prio=50 status=active | `- 11:0:0:4390 sdl 8:176 active ready running `-+- policy='service-time 0' prio=10 status=enabled `- 10:0:0:4390 sdk 8:160 active ready running [root@compute75 ~]# After removing old paths, still we are able to access the storage. [root@compute75 ~]# ssh sdn@192.0.2.14 sdn@192.0.2.14's password: Welcome to Ubuntu 16.04.6 LTS (GNU/Linux 4.4.0-142-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage 98 packages can be updated. 56 updates are security updates. Last login: Fri Oct 4 16:49:06 2019 from 192.0.2.1 sdn@ubuntu:~$ df -hT /mnt/test Filesystem Type Size Used Avail Use% Mounted on /dev/vdb1 ext3 991M 35M 906M 4% /mnt/test sdn@ubuntu:~$ cd /mnt/test sdn@ubuntu:/mnt/test$ touch bb touch: cannot touch 'bb': Permission denied sdn@ubuntu:/mnt/test$ sudo su - [sudo] password for sdn: root@ubuntu:~# cd /mnt/test root@ubuntu:/mnt/test# touch bb root@ubuntu:/mnt/test# ls aa bb docs docs2 lost+found root@ubuntu:/mnt/test# Now rebooted the compute node. The vm is going to error state. [root@compute75 ~]# reboot Connection to compute75 closed by remote host. Connection to compute75 closed. [root@osc ~(keystone_admin)]# [root@osc ~(keystone_admin)]# openstack server list +--------------------------------------+-----------+--------+-----------------+------------+ | ID | Name | Status | Networks | Image Name | +--------------------------------------+-----------+--------+-----------------+------------+ | 15c064ca-8bd0-40be-b384-c796db1da953 | test_vol3 | ERROR | net1=192.0.2.14 | ubuntu | | afd5c571-2152-4313-988e-c74a8fc7f586 | test_vol2 | ACTIVE | net1=192.0.2.13 | ubuntu | | 34d6b9aa-4642-461c-ba22-508de8f5ba5a | test_vol1 | ERROR | net1=192.0.2.2 | ubuntu | +--------------------------------------+-----------+--------+-----------------+------------+ [root@osc ~(keystone_admin)]# 2019-10-07 16:09:52.456 28347 WARNING os_brick.initiator.connectors.iscsi [req-1f65b818-108d-41cb-9ea1-ca18761a673f - - - - -] Failed to login iSCSI target iqn.1992-04.com.emc:cx.ckm00185002995.b0 on portal 170.0.0.11:3260 (exit code 8). 2019-10-07 16:09:52.458 28347 INFO os_brick.initiator.connectors.iscsi [req-1f65b818-108d-41cb-9ea1-ca18761a673f - - - - -] Trying to connect to iSCSI portal 170.0.0.10:3260 2019-10-07 16:11:52.636 28347 WARNING os_brick.initiator.connectors.iscsi [req-1f65b818-108d-41cb-9ea1-ca18761a673f - - - - -] Failed to login iSCSI target iqn.1992-04.com.emc:cx.ckm00185002995.a0 on portal 170.0.0.10:3260 (exit code 8). 2019-10-07 16:11:52.789 28347 ERROR os_brick.initiator.connectors.iscsi [req-1f65b818-108d-41cb-9ea1-ca18761a673f - - - - -] Could not login to any iSCSI portal. 2019-10-07 16:11:52.790 28347 WARNING nova.compute.manager [req-1f65b818-108d-41cb-9ea1-ca18761a673f - - - - -] [instance: 15c064ca-8bd0-40be-b384-c796db1da953] Failed to resume instance Could you please advise further on this. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. 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