From: Rob De Langhe (Rob.DeLanghe@telindus.be)
Date: Mon Jun 14 2004 - 02:20:32 EDT
hi,
we have 2 desktop servers, that both get their /export/home from a central
NFS-fileserver.
The problem is that this single central NFS-fileserver is obviously a
single-point of failure, and worse: if ever it reboots, the NFS-filehandles
given to those desktop server will become invalid, so also the 2 desktop
servers would have to reboot (or at least kick all users off the machines to
free their home-dirs) to remount this /export/home.
A while ago I heard about a NFS-cluster solution from SUN, but clearly this
was big bucks $$!
I noticed that on the other hand, the SMB-protocol doesn't have this statefull
behaviour of the NFS-filehandles. Call it a feature or a missing aspect, but
if a Samba-server restarts, the Samba-clients don't notice it apart from a
'short' delay in being serviced.
So my question is : would it be realistic to replace my NFS-fileserver by the
following:
- 2 servers attached to shared storage, of which one server is running
actively a Samba service listening on a secondary IP-address.
- if this primary Samba server reboot, the clients don't really notice
anything (apart from a delay in the file-service)
- if this primary Samba server dies entirely, the 2nd host can take over the
secondary IP-address and the Samba service. Again, the clients wouldn't
notice, no ?
Anyone has suggestions, toughts, whatever comments about this view ?
TIA
Rob
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