On 6/5/12 2:59 PM, Yount, William D wrote:
I am looking for a fault tolerant solution. By this, I mean I want there to be
an automatic switch over if one of the two storage servers goes down with no
human intervention.
Initially, I followed this guide:
https://help.ubuntu.com/community/HighlyAvailableNFS
That works fine, but there are several steps that require human intervention in
case of a server failure:
Promote secondary server to primary
Mount drbd partition to export path
Restart nfs-kernel-server (if necessary)
I was trying to get dual primaries setup, thinking that if one goes out the
other will take over automatically. There just seems to be so many moving
pieces that don't always work they way they are supposed to. I have been
reading all the material I can get my hands on but a lot of it seems
contradictory or only applicable on certain OS versions with certain versions
of OCFS2, DRBD and Pacemaker.
It doesn't matter to me if it is master/slave or dual primaries. I am just
trying to find something that actually works.
Linbit's own guide should suffice, it's what i used setting up my own
HA-NFS in the past month. I deviated in a few places from exactly what
is provided (mainly different mnemonic names for primitives, etc) but
overall it covers it in a very straightforward way.
www.linbit.com/fileadmin/tech-guides/ha-*nfs*.pdf
--
Paul Theodoropoulos
www.anastrophe.com
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