>>> Digimer <li...@alteeve.ca> schrieb am 24.08.2015 um 18:20 in Nachricht <55db4453.10...@alteeve.ca>: [...] > Using a pair of nodes with a traditional file system exported by NFS and > made accessible by a floating (virtual) IP address gives you redundancy > without incurring the complexity and performance overhead of cluster > locking. Also, you won't need clvmd either. The trade-off through is > that if/when the primary fails, the nfs daemon will appear to restart to > the users and that may require a reconnection (not sure, I use nfs > sparingly).
But that's a cheap trick: You say don't provide HA-storage (CFS), but use existing one (NFS). How do you build a HA-NFS server? You need another cluster. Not everybody has that many nodes available. > > Generally speaking, I recommend always avoiding cluster FSes unless > they're really required. I say this as a person who uses gfs2 in every > cluster I build, but I do so carefully and in limited uses. In my case, > gfs2 backs ISOs and XML definition files for VMs, things that change > rarely so cluster locking overhead is all but a non-issue, and I have to > have DLM for clustered LVM anyway, so I've already incurred the > complexity costs so hey, why not. > > -- > Digimer > Papers and Projects: https://alteeve.ca/w/ > What if the cure for cancer is trapped in the mind of a person without > access to education? > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org