After playing with RHEL6 in VM's for a few weeks we finally decided to upgrade one of our existing production systems to RHEL6. It's an older system, and relatively non-critical, so we had some downtime with it. The system is connected to an iSCSI SAN via Qlogic iSCSI HBA's, but we disconnected those during the install. We installed RHEL6 and everything seemed fine so we reconnected the SAN, performed the multipath config, ran vgscan and the existing LVM volumes were found and everything seemed great.
However, the problems came up when we rebooted. The system mounted everything just fine, including the SAN volumes, however, we noticed that LVM is connecting directly to first physical disk rather than to the multipath target. If we deactivate the LVM and reactive it after the system boots, then the LVM will be accessed via the multipath device. It appears that the RHEL6 boot process is activating LVM prior to activating multipath. We've tried several options, and found a reference to what sounded like the problem in the RHEL6 technical notes which told us to create a new udev rule, but that didn't seem to change anything. Has anyone else seen this or is this something strange only in our environment? Are we doing something obviously wrong? Any options on where to look? Thanks, Tom _______________________________________________ rhelv6-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv6-list
