On Mon, 2007-11-19 at 11:29 +0100, Gunther Schlegel wrote: > Might just be a coincidence, but on yesterday my development server lost > all multipath connections to its EMC AX Array during it's weekly full > backup. The dm_emc module was not able to revive any of the 4 paths -- > which were in fact all fine. I had to unload / reload all dm-modules to > get the volume back online. > > This has never happened before and the server is already running 5.1. > > regards, Gunther
Thanks for the feedback. I'm not sure that's related or not, but it's interesting. We actually think our problem may have been related to a third-party driver. The test was actually being run on LUN's that were mounted via Qlogic 4062C iSCSI TOE HBA's and the system had the Qlogic version of the qla4xxx driver installed. Today we tried to reproduce the issue with the stock qla4xxx driver included with RHEL5.1 and we could not. Unfortunately that still leaves us in a strange place. We can't figure out any way to configure the HBA when using the stock driver. SANsurfer doesn't appear to work, and even though there are hints that we should be able to use iscsiadm to do the trick we can't even seem to make it aware of the fact that we have Qlogic HBA's installed (we can get software iSCSI working with iscsiadm). Anyone else have experience with the Qlogic iSCSI HBA's on RHEL5.1? Is there a way to configure them when using the stock RHEL5.1 driver? Thanks, Tom _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
