  OpenVMS Cluster Distributed Lock Manager? 
 The Question is:
 
(Using Clusters for LockMgr/DLM only/mostly..)
 
We were looking at solns for a distributed
election problem (we want a only a designated
'primary' system to perform some set of tasks),
across 5-10 unclustered, stand-alone but
networked systems, split betw. 2 sites.
 
and it occurred to me, that a sledge-hammer
approach, might be to *consider* clustering
these systems in most minimal fashion.
ie, heterogeneous (we've no/very few
interactive users), ie, w/ no shared storage.
 
such that we might use the DLM across the
lan, for some v. small set of locking tasks.
 
Are there more than a few customers doing
this?  would it be remotely close to being
supported?  or would we be better off to
brew/grow our own distributed controls ?
 
 
 The Answer is:
 
  This OpenVMS Cluster configuration -- with multiple system disks and
  various system-specific activities -- is fully supported, presuming
  the following assumptions hold:
 
    o sufficient (Ethernet or better ) bandwidth and latency on
      all intra-cluster links.
 
    o the cluster must be configured as a single security domain.
 
  For information on the files that must be shared within an OpenVMS
  Cluster, please see the V7.2 and later versions of the
  SYLOGICALS.TEMPLATE file, and please see the OpenVMS Cluster
  documentation in the OpenVMS manual set.
 
