Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
My nice cisco 3750 switch crashed yesterday, both DRBD servers noticed the lack of connectivity, then came back when the switch rebooted and auto resolved the split brain. However I am running CLVM on top of DRBD and fencing was not happy with the loss of connectivity and each server decided to shoot each other in the head. Each server is connected with gig ethernet as well as infiniband and the cluster and I believe fencing can be configured to use two interfaces. Is there any way to configure DRBD to use BOTH IP address? The ability to use two networks for DRBD would help in many ways. The 2nd question is, assuming that DRBD can not be configured to use two networks, how safe is it for me to configure fencing to use both network and have DRBD run as primary/primary for a while in split brain? The boxes are used for XEN and each server only reads/writes to a unique file using tapaio. My guess is not long before blocks would get messed up beyond repair even if they are each accessing unique files, but I am not sure on that. Thought about using some sort of routing protocol between the boxes, but they all look two slow to work in this application. ><> Nathan Stratton CTO, BlinkMind, Inc. nathan at robotics.net nathan at blinkmind.com http://www.robotics.net http://www.blinkmind.com