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Re: shadowing (like IB/Firebird)

From: David Garamond <lists(at)zara(dot)6(dot)isreserved(dot)com>
To: Kragen Sitaker <kragen+pgsql(at)airwave(dot)com>,pgsql-general(at)postgresql(dot)org
Subject: Re: shadowing (like IB/Firebird)
Date: 2004-05-26 15:23:03
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Lists: pgsql-general
Kragen Sitaker wrote:
> On Tue, Apr 27, 2004 at 10:36:24AM +0700, David Garamond wrote:
>>Glen Parker wrote:
>>>Sounds an aweful lot like RAID level one :-)  Why would a DB system need to
>>>do what RAID already does quite well?
>>I think IB/FB's shadowing was implemented before RAID was invented 
> Heh, not likely.

I asked this on Firebird-General(at)yahoogroups(dot)com list and Jim Starkey 
(the original author) said that shadowing indeed was written before RAID 
was invented (probably in early 80's or even late 70's). See the list 
archive for more details.

>>or became popular.
> That's quite possible.


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