[OpenAFS] R/W replication

[aeneous@speakeasy.org]

> Well, speaking about the need in RW replication - I can imagine (actually,
> even to see alive) an infrastructure that has 100s compute servers writing
> simultaneously to the same volume. Sometimes it can kill the server...

Bad solution in that case.  The data still has to go *both* volumes.
You'd be better off splitting the volume in two and placing it on different 
servers or using a higher performance back-end.

> As for the implementation - I thought once about something like DCE CDS
> master implementation - actually, one could configure which file server will
> become master for, let's say, every file - and it will propagate changes to
> other servers that will act as slaves for this specific record (file)...
> Indeed, would be a real challenge to provide such feature.

Indeed.

You might try using a backend (SAN?) that does mirroring.