Hi Evgeniy So my main point that POHMELFS will not be of any use as a high performance redundant network file system is correct ?
Mike Evgeniy Polyakov wrote: > Hi Mike. > > On Thu, Jun 11, 2009 at 10:49:12AM +0930, Mike O'Connor ([email protected]) > wrote: > >> In your announcement to day you mentioned that no one wants to move from >> NFS, we in my case I really want something to replace it as it has just >> to many limitations and is just slow. >> >> I need to be able to build high reliability storage servers and the >> tools out there right now just do not do the job. >> >> Options >> 1. I need two separate storage servers (12 disks) which are kept in sync >> 2. I need a number of servers running vservers (www.linux-vservers.org) >> to access the storage on network. >> 3. I need to be able to add extra disks with our affecting uptime. >> >> NFS: >> 1. Very hard with open source software >> 2. When we do this the just one of the vserver guest can cause the whole >> system to slow down. >> 3. There are no local file system which would allow this easily and >> maintain local raid copies. (btrfs is the future here) >> >> POHMELFS: >> 1. Once stable would perform this effortlessly. >> 2. From everything I have read and from my own understanding of the code >> I believe this would not happen. >> 3. Again this is an issue but with btrfs this would not become an issue. >> >> So overall if you going to move POHMELFS away from being a very >> effective network filesystem protocol, I do not know what I can use instead. >> > > It is still possible to work with the elliptics storage backend like > with the network filesystem, but its data representation will be > different compared to common directory hierarchy. > > There will be no common names and optionally objects may live in the > database, but this allows to move away from non-scaling metadata servers > and need for the manual sync of the exported directories in case of > network failures and effectively limited scaling - we can not increase > the storage size when using NFS model. > > _______________________________________________ Pohmelfs mailing list [email protected] http://www.ioremap.net/cgi-bin/mailman/listinfo/pohmelfs
