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Re: [HACKERS] Online backup vs Continuous backup

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, PostgreSQL-documentation <pgsql-docs(at)postgresql(dot)org>
Subject: Re: [HACKERS] Online backup vs Continuous backup
Date: 2006-03-02 19:29:50
Message-ID: 200603021929.k22JToC19808@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-docspgsql-hackerspgsql-patches
Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> >> This addresses the technical workings of the various backup systems.
> >> The fact that it is or isn't on-line, hot, continuous, fast, or flexible
> >> is secondary.
> 
> > To me, the continuous activity is the significant feature of that backup
> > method.  I chose "Continuous Backup" because it is the continual
> > activity that is significant.  "Continuous Archiving"?
> 
> I like Peter's suggestion as-is; or "WAL Archiving".  I don't like
> applying adjectives that are not specific to the particular method.
> That will just create more confusion down the road if we add another
> feature that could also be called "continuous archiving".

I do like "WAL Archiving" but I am concerned that it references a
specific internal implementation detail (WAL).  Is that OK?  Also, I am
concerned that is specificially talks about archiving the wal files and
is not general enough to include the file system backup that is also
necessary.

-- 
  Bruce Momjian   http://candle.pha.pa.us
  SRA OSS, Inc.   http://www.sraoss.com

  + If your life is a hard drive, Christ can be your backup. +

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