Hello, I wondered if it's possible to have two MDTs in failover who write their data to two different devices? One MDT1 active as normal, the other MDT2 would be passive but still writing it's metadata to it's own device. So that in a case of failure the first MDT would go down normally, the second one would come up with it's own partition, which should be nothing more than a exact copy of the metadata device of MDT1? It would be great, because we have not one large Server room in our building, but a lot of small ones, each with an air conditioned server rack, and we still want to use our clusterfs, even if the "whole rack" with the MDT1 fails.
I looked trough the manual and found the "failover HowTo" and I only figured out, how to use two MDTs with the same device, which wouldn't be a real "failover" in our setup, or do miss something? If there is no possibility, is there some way of "workaround" like using iscsi or something like that to update the second MDT-device so that if the first one fails, the second is up to date with it's own device? Sorry to bother you with this questions but I found nothing documented for this kind of setup. And of course, sorry for my bad english Greetings Tobi _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
