On Aug 2, 2011, at 7:58 AM, Venkateswararao Jujjuri wrote: > We at IBM receiving multiple customer requests for supporting NFSv4 server migration. > I have referred to Trond and Chuck's presentations at 2011 Connectathon and there appears to be > sizable work remaining. I am not sure if there is any progress made since those talks. > > I would like to open up a discussion thread on the mailing list to understand the latest status. > Also would like to get the input on the Volatile Filehandles (VFH). I searched the mailing list, and could not > find any recent discussion on this. > > Some discussion points: > - What are the pieces left to attain full client/server support for seamless server migration? The client migration implementation is code complete and in test now. This includes both minor version 0 and 1. We don't have any mv1 servers to test with at this time, so that support is provisional. I hope to have patches ready for the 3.2 merge window, but you can see what I've got now on git.linux-nfs.org. A problem is that there are corner cases in the v4.0 migration specification that are still unresolved. We are working with the NFSv4 WG to get these addressed. But I expect some minor changes even after the patches are merged upstream. We don't have firm plans for a server migration implementation on Linux at this time, but Bruce can maybe say more about that. > - Any discussion/sugestions on the way to implement VFH? As described in RFC 3530 sections 4.2.3 and 4.2.4? I think we are avoiding volatile file handles as long as possible. We don't have plans to implement them at the moment. > - Are there any community efforts going / about to start in this area? so that we can partner and get > things done instead of duplicating the work. > > Thanks a lot for your help > JV -- Chuck Lever chuck[dot]lever[at]oracle[dot]com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html