On Jul 13, 2010, at 7:58 AM, Layer7 Consultancy wrote: > Hi Chris, > > Thanks for your answer, this was also my understanding on how things > work when using the FUSE client (all storage nodes are described in > the glusterfsd.vol file and thus the client has connection info to > them). > > However, when using NFS the documentation states that one should > connect to the 'management IP' and this also seems to be the only > connection information that the client has. > If this management IP is gone due to the server going down, there is > no way the client can know there are multiple other servers who are > also serving the same content, so unless this virtual IP is taken over > by another storage node, the client wouldn't know where to route the > request to. > > Can anyone confirm this? Your understanding is correct. Whether using the native NFS translator or re-export through unfsd, NFS clients only connect to the management IP. If you want failover for the NFS server, you'd setup a virtual IP using ucarp (http://www.ucarp.org) and the clients would only use this virtual IP. ------------------------------ Vikas Gorur Engineer - Gluster, Inc. ------------------------------
