On Jun 21, 2007 22:26 -0500, Jon Gabrielson wrote: > What is the minimal high available lustre installation. > > Is a two node lustre installation considered stable? > i.e. > node1: MGS+MDT+MDS+DRBD(for MDT/MGS)+OST+OSS+client > node2: MGS+MDT+MDS+DRBD(for MDT/MGS)+OST+OSS+client > > If you add a third/fourth node, I would assume it would be just: > node3: OST+OSS+client > node4: OST+OSS+client > > Is there any reason why this wouldn't work for a high available cluster? > Is there a better way to configure a small cluster?
If you want a highly-available 2-node cluster then Lustre probably isn't what you want. If either node fails it is considered a "double failure" from the Lustre POV (both MDS, OST, client failing at once) and recovery from this will not work. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
