Dave Kempe wrote:
Crossfire wrote:
I want to be able to set it up so /home (and maybe other filesystems)
are replicated from one to the other, in both directions, in real time
so they can run in an all-hot redundant cluster.
The environment should be mostly read-oriented, so I can live with
write-latent solutions as long as they handle the race/collision
gracefully (preferably by actually detecting and reporting it if they
can't avoid it).
isn't this just a description of a network filesytem... say NFS?
No. Network Filesystems still have a distinct single storage location.
If that storage is taken offline, clients can only error or hang.
With a hot real-time replicated filesystem, all involved nodes would
have a full local copy at all times and would be able to continue operation.
C.
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