Can CTDB be used to create HA NAS reexporting NFS via Samba?

Alexander forsmbg at
Tue Jan 13 12:57:54 GMT 2009

Well, ok, I get it, thanks for the clarification, Volker.
But I think that anyway it sounds good enough to try it out, how much of the
availability it can bring.

Have you anything to say about the main question, NFS being reexported in
this setup? Will it work or it's hard to say or something?


On Tue, Jan 13, 2009 at 3:52 PM, Volker Lendecke
<Volker.Lendecke at>wrote:

> On Tue, Jan 13, 2009 at 03:34:35PM +0300, Alexander wrote:
> > potential for production use. And looking at its features like that
> gentle
> > TCP session takeover and everything - it looks like a solution for a
> [kind
> > of] true non-stop fileserver.
> No. Ctdb can't do TCP session failover. Ctdb has
> capabilities to trigger the client to very quickly reconnect
> under all circumstances. But the client will be able to tell
> that a node failed.
> With SMB2 there will be support for so-called durable file
> handles which make the client OS completely hide a failover
> from the client applications. But that's not there yet in
> Samba.
> Volker

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