Hi, In my infinite search for a reliable work-around for the lack of bandwidth in the United States*, I've reached the conclusion that I need a file-system replication solution for the data stored on my ZFS partition. I've noticed that I'm not the only one asking for this, but I still have no clear answer on my options from Google. After looking into some reports on rNFS on citi.umich.edu, I found out that I'm not the only one with the problem (go figure). I am not really up to date with the NFSv4 spec and drafts, but I am curious if rNFS is part of the current NFSv4 spec or of the upcoming 4.1, and if it's considered or available for OpenSolaris, or if there are any alternatives (such as a replicated ZFS solution that supports simultaneous r/w access on at least 2 geographically separate servers). Some might argue that QFS + Sun Cluster is the way to go, but I need a few things that ZFS currently offers (NFSv4 ACLs and snapshots that Samba can be made aware of), and will want to move to CIFS server as soon as it's production quality. Generally, the write traffic on the Samba shares that need replication is light (around 1GByte/day), but it does need to happen whenever there's a change. I've tried creating a smart cron script that runs unison every minute (lame, I know), but it does not replicate the NFSv4 ACLs, and it's a rather bad approach to the problem to start with. A daemonized unison with support for all the ZFS features that gets the file-change notifications from the kernel along with a distributed lock manager might do the job, but it's something that I'm not qualified to write. I am sure that what I'm looking for is not unheard of. I am hopeful that the ZFS+Lustre integration in the future might allow me something like this, but it doesn't sound like it's close.
Any sugestions?!? Cheers, Razvan * Our Bucharest branch has access to 10 Mbits/sec internationally and 100 Mbits/sec nationally (fiber of course) with BGP and our own IP classes, for around EUR 250. This is in contrast with our San Jose, CA branch, which has a connectivity budget of $700 and can get only a bonded-T1 at best in that money (a T1 is $500 ($399 + taxes)). I wish that the most economically advanced country in the world could have a decent internet infrastructure. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
