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Re: Crash Recovery

From: Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net>
To: PgSQL Performance ML <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Crash Recovery
Date: 2003-01-24 13:52:57
Message-ID: 1043416377.29437.70.camel@haggis (view raw or flat)
Thread:
Lists: pgsql-performance
On Thu, 2003-01-23 at 21:32, Noah Silverman wrote:
> To preface my question, we are still in the process of evaluating postgres 
> to determine if we want to switch our production environment over.
> 
> I'm curious about where I can find documentation about crash recovery in 
> postgres.  In mysql, there is a nice table recovery utility (myisamchk). 
> is there something similar in postgres?  What do we do if a table or 
> database becomes corrupted? (I'm aware of backup techniques, but it isn't 
> feasible for some of our larger tables.  We're already running on raid 5, 
> but can't do much more)

Of course it's feasible!!  If corporations can backup terrabyte-sized
databases, then you can backup your comparatively puny DB.

In fact, if your data is vital to your company, you *must* back it
up.  Otherwise, poof goes the company if the computer is destroyed.

Now, it might cost some bucks to buy a tape drive, or a multi-loader,
if you have *lots* of data, but it *can* be done...

Btw, what happens if an obscure bug in the RAID controller shows is
head, and starts corrupting your data?  A table recovery utility
wouldn't do squat, then...

-- 
+---------------------------------------------------------------+
| Ron Johnson, Jr.        mailto:ron(dot)l(dot)johnson(at)cox(dot)net          |
| Jefferson, LA  USA      http://members.cox.net/ron.l.johnson  |
|                                                               |
| "Fear the Penguin!!"                                          |
+---------------------------------------------------------------+


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