I am aware that heartbeat can be done over USB links using USB-Ethernet interfaces. I specifically do not want to do that, because I am looking for a heartbeat link that will be independent of the IP stack, but on machines that do not have native serial ports. So I got a couple of Keyspan USB-Serial adapters which I have had success using on my laptop for various purposes. However, if I connect the same null modem cable between two of these that works fine between two on-board serial ports, it fails the cat test; I don't see anything on the other side. Both machines properly detect the adapter and create /dev/ttyUSB0, but the link does not work.
Is a different sort of serial cable needed for this? Is there a problem with this particular type of USB Serial adapter and something else would work better? Has anyone successfully gotten a USB-Serial heartbeat to work? This is CentOS 5 on x86_64 with heartbeat 2.1.3-3.el5.centos if it matters. Thanks, --Greg _______________________________________________ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
