[ENBD] Re: 2 sided enbd

[Peter T. Breuer]

"A month of sundays ago Chas Wareing wrote:"
> Thanks, I probably will do 2x2 50GB partitions; that sounds good; thanks
> for all the detail!

There are heartbeat scripts for that kind of failover in the enbd
distribution and on the web page.

Look in the nbd/etc/ha.d subdirectory.

  # Taken from Matthew Sackman's howto at
  # http://wellquite.org/redundant/
  # in november 2002. We discussed this on the list together. I haven't
  # tried the scripts myself as I run a different arrangement, I may have
  # mutilated these scripts in some way so that they don't work. Let me
  # know (ptb@it.uc3m.es).

  # Heartbeat configuration for two machines, with the physical resource
  # on the server, strauss, and the network block device on the client,
  # mahler.

You want to run two of those setups, with the roles reversed between
the two, so that strauss is primary for one system, and mahler is
primary for the other.

Peter