> You don't say which FC cards you are using but if it's qlogic, then the > driver can be set to combine the devices. Basically whats happened is that >your machine is picking up the alternate path to the device, which is a >perfectly valid thing to do, it's just not what you need at this point. It >may be as simple as your The cards are all Qlogic, the switch is going to be an ED-5000 next week, the storage is mostly Xyratex chassis. >secondary controller actually has the lun you are trying to access. To work >around yo might just be able to reset the seconday controller and force the >primary to take over the LUN. This happens quite a bit depending on your >setup. I do have options on the Xyratex to combine the two controllers into one number but that's the loop ID. Not sure I've seen anything for LUN control yet. > Even without failover, the latest Qlogic drivers will make both paths active > so that you never end up with a dead path upon boot up. Path's seem fine, I mean, the storage does show up. It's just that my initial device has moved to another /dev/sdx number. In another message, am I to understand that once the physical device is set up and running as a GFS volume, that LVM2 will always see it no matter if the /dev number changes? I'll also have to look into your suggestions. Thank you very much. Mike -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster