Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
My question is : Currently there is just one secondary node in DRBD setup. I want to change this scenario as follows. 1. There can be n nodes in the cluster. 2. One node is primary node. 3. Remaining n-1 nodes are secondary nodes. 4. Now in original setup, for every write operation, primary creates a thread which updates the secondary. Keeping all the protocol as it is, for every write operation I want to create n-1 threads, which can perform the the desired operations of DRBD to all n-1 secondary nodes. Is doing this possible? If it can be done, then we have n nodes who have mirrored data. Then using Heartbeat V 2 we can implement HA-NFS. Waiting for valuable suggestions and directions. Warm regards, - Ashish K. Diego Julian Remolina wrote: > The limiting factor here would be DRBD. You can only get support for a > 3-way drbd if you get drbd plus from linbit (~1,870 Euros/year); this > configuration is usually done for off-site disaster recovery (from > what I have read in the list). Also notice that drbd-0.7.x only allows > active/passive configurations, so you would have to use the new 0.8 or > 8 series which is not stable yet. OTOH, if you have shared storage, > you can use GFS or OCFS for your file system and then connect as many > nodes as you want to the same storage system and use heartbeat 2.X. > > I assume that when DRBD 8 is out you will be able to do active/active > with GFS or OCFS and have two nodes serving at the same time. I am not > sure if 3-way nodes will be part of the standard drbd 8 series. Here > is a link to their plus product: > > http://www.linbit.com/en/drbd/drbd-plus/ > > Diego > > Ashish Khurange wrote: > >> Hi, >> I want to build High available NFS cluster with more than two nodes. >> Using DRBD and Heartbeat Version 2. Heartbeat V 2 allows to build HA >> cluster of more than two nodes. >> >> Have anyone tried this? >> Is it possible? >> >> Waiting for valuable inputs and suggestion. >> >> Warm Regards, >> - Ashish K. >> _______________________________________________ >> drbd-user mailing list >> drbd-user at lists.linbit.com >> http://lists.linbit.com/mailman/listinfo/drbd-user >