[Samba] SAMBA Cluster or .......
jra at samba.org
Fri Mar 9 18:56:02 GMT 2007
On Fri, Mar 09, 2007 at 11:45:50AM +0100, Marcin Giedz wrote:
> My question is quite related to this topic. Currently I work for one of
> brokerages and prepare to set up domain for all employees. However I
> must be sure that if my PDC fails my BDC will provide all connections to
> roaming profiles and extra shares (to be mounted during the log in
> process). But additionally I want to have only ONE storage place for
> placing every shares and profiles. Lucky, I "found" one EMC disk array
> to be used in this solution. My idea is connect 2 server (PDC and BDC)
> over FCs to ONE storage. I don't have any extra software like "cluster
> Now I have almost everything UP and running but found this "thread"
> about "data consistency" where different Samba instances may cause data
> Please NEVER export the same file space via different Samba
> nodes, this leads to data corruption because the locks
> propagated have the wrong semantics...."
> Now I'm wondering if I can really do this? According to what Volker said
> my solution/idea is (in a word) - BROKEN :(
> Does this me that I must use some extra software between EMC storage and
> Samba instances to prevent data lost? In my situation there is a chance
> that PDC and BDC will server THE SAME file for different users.
> So looking at this topic I'd come to think that I CAN'T go production
> with such prepared PDC + BDC + EMC storage - am I right? If yes would
> anyone propose any solution for such idea?
You have to be careful to do this. It's safe to do for
a failover solution (no 2 Samba servers active at the
same time), it's also safe for read-only shares.
If you have active processes writing data simultaneously
to the same file then they should be pointing at the
same Samba server.
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