Data Redundancy made simple

[Reuben Wachtfogel]

I'm working on a ring of >100 HP/APOLLOs and have a single
node that stores several sensitive data files that must
be available for our major application to work.

I could store dual copies of these files on 2 seperate nodes and 
code the application to perform all updates of
these files on this MASTER node as well as a BACKUP MASTER node
so that if the MASTER were vaporized, the BACKUP could be slipped
in with minimal downtime.

My question is: 
	
         'Is there some application transparent way to achieve
          data redundancy in a unix network ?'

I would think that a DEVICE DRIVER could be written to accomplish
this.  Is there an elegant way ?  SYS5 Streams ?  Does NFS help ?  
Well Wizards, what say You ?

--------------------------------------------------------------------

Please respond here or to ruben at dsp35001.boeing.com 

                                                       Thanks

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