Lars Marowsky-Bree escribió: > On 2009-01-20T17:21:39, Adrian Chapela <achapela.rexist...@gmail.com> wrote: > > >> It is accessed over lan, you need a server with "IPMI over LAN" like >> Integrated Lights-Out from HP, most known as iLo ( >> http://h18013.www1.hp.com/products/servers/management/ilo/ ). iLo has a >> network port that you can use to control a server remotely. >> >> I think a good way (if the server are near...) could be use a cross-over >> ethernet wire. >> > > Cross-over of course doesn't work for more than 2 nodes ;-) > Yes, I know thank you. > Usually, having the IPMI device on one of the cluster LANs suffices. > > You need two failures for the cluster to freeze then: the IPMI LAN going > down, _and_ a node failure/additional network failure. > > As the HA cluster tends to only protect against single failures (it is > usually very possible to construct a scenario of two failures which > bring down the entire cluster), that guarantee still holds. > > It's all a question of paranoia of course, but k-fault-tolerance for k > > 1 is really quite difficult in the general case, even though special > cases (ie, a 5 node cluster can tolerate 2 node failures) is possible. > I will try this option and I will posts results as soon as possible.
Thank you! > > Regards, > Lars > > _______________________________________________ Pacemaker mailing list Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker