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From: ruben@bcstec.boeing.com (Reuben Wachtfogel)
Newsgroups: comp.unix.wizards
Subject: Data Redundancy made simple
Keywords: STREAMS, DEVICE DRIVERS, REDUNDANCY
Message-ID: <992@bcstec.boeing.com>
Date: 26 Jun 91 01:11:26 GMT
Article-I.D.: bcstec.992
Organization: Boeing Computer Services, Seattle
Lines: 30

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@dsp35001.boeing.com 

                                                       Thanks

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DISCLAIMER: This posting was randomly generated by chimp #2306893743823
            and does not represent the opinion of any large Aerospace 
            company starting with a 'B'.