zachfortna
Contributor
Contributor

iSCSI Login Failure

I have a 6 node ESX 4.1 cluster connecting to Equallogic iSCSI arrays for storage.  When i reboot a host, i get a series of messages like this in /var/log/messages

Apr 13 14:42:05 iscsid: Login Failed: iqn.2001-05.com.equallogic:0-8a0906-82482e208-14c81400c454d811-dc1 if=iscsi_vmk@vmk2 addr=192.168.75.180:3260 (TPGT:1 ISID:0x2) Reason: 00080101 (0x0101 Requested ITN has moved temporarily to the address provided.
Apr 13 14:42:05 )
Apr 13 14:42:05 iscsid: Notice: Delaying Release of (H41 T8 C1 session=80 target=9/9)
Apr 13 14:42:05 iscsid: Shutdown Session: iqn.2001-05.com.equallogic:0-8a0906-77c82e208-53781400c484d812-ocs-med if=iscsi_vmk@vmk2 addr=192.168.75.180:3260 (TPGT:1 ISID:0x2)  (T9 C1) Reason=8
Apr 13 14:42:05 iscsid: Notice: Reclaimed Channel (H41 T9 C1 oid=a)
Apr 13 14:42:05 iscsid: Notice: Reclaimed Target (H41 T9 oid=a)

and the datastores do not reconnect.  I am using the Dell/Equallogic MEM plugin if that matters.

Any ideas how I can fix this?

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weinstein5
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Welcome to the Community - Did this problem just start? Were you ever able to connect to the iSCSI storage? Are you able to resolve after the host reboots? Is this happening with a single host or all 6 hosts?

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zachfortna
Contributor
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The problem started when I started building hosts for a View cluster, but then I realized the problem exists on the server cluster as well.  I have 2 storage arrays, 1 SATA, 1 SAS.  I have no problems connecting to the volumes on the SATA array, but only 4 of my datastores reside on that array.  The remaining 50 datastores reside on the SAS array and that is where the problem is.  I think the issue started before this, but I hadn't brought any new hosts online so it wasn't noticed

It is happening on 1 node on the server cluster and all 3 nodes on my View cluster.  I assume it is happening on the other 5 nodes of the server cluster as well, but I am afraid to reboot them and not be able to bring my VMs back online.

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zachfortna
Contributor
Contributor

Just to resolve this post, it turned out the problem was my network switch didn't support jumbo frames and I had them enabled on the iscsi vSwitch.  As soon as i disabled jumbo frames, everything was fixed.

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