Thanks for responding, Joel. It turned out to be a VLAN change which required a change with the bonded NIC. Immediately after issuing ifenslave -c bond-hb eth2 on the problem node, it joined the cluster and the OCFS volumes could be mounted. -----Original Message----- From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Joel Becker Sent: Thursday, January 06, 2011 4:03 PM To: linux clustering Subject: Re: reboot to rejoin RAC cluster? On Thu, Jan 06, 2011 at 12:01:32PM -0500, Morrison, Bradley A wrote: > Q: Can I reboot one node in a two-node cluster and have it rejoin the cluster? You certainly should be able to. You should not need a reboot either if you just want to rejoin. > I've a two-node cluster which recently had HBAs replaced on both cluster nodes. > Node 1 was ejected sometime after its latest reboot, and now won't mount its OCFS volumes. The volumes' headers are verified from n1, i.e., it can see the volumes, but mounting fails. Restarting o2cb yields "modprobe: FATAL: Module ocfs2_stackglue not found." This sounds like a kernel configuration problem. If you can't load ocfs2_stackglue, you can't get the filesystem started. What kernel are you running? Joel -- "When arrows don't penetrate, see... Cupid grabs the pistol." http://www.jlbec.org/ jlbec@xxxxxxxxxxxx -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of JPMorgan Chase & Co., its subsidiaries and affiliates. This transmission may contain information that is privileged, confidential, legally privileged, and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable, for any loss or damage arising in any way from its use. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. Please refer to http://www.jpmorgan.com/pages/disclosures for disclosures relating to European legal entities. -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster