Skip site navigation (1) Skip section navigation (2)

Re: [GENERAL] full_page_writes = off?

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Greg Smith <gsmith(at)gregsmith(dot)com>
Cc: PostgreSQL-documentation <pgsql-docs(at)postgresql(dot)org>
Subject: Re: [GENERAL] full_page_writes = off?
Date: 2007-12-10 14:51:17
Message-ID: 200712101451.lBAEpHR19315@momjian.us (view raw or flat)
Thread:
Lists: pgsql-docspgsql-general
Greg Smith wrote:
> On Mon, 10 Dec 2007, Bruce Momjian wrote:
> 
> >     exist for disk controller caches.  Consumer-grade IDE drives are
> >!    particularly likely to have write-back caches that will not survive a
> >!    power failure.  To check write caching on <productname>Linux</> use
> >!    <command>hdparm -I</>;  it is enabled if there is a <literal>*</> next
> >!    to <literal>Write cache</>.  <command>hdparm -W</> can to turn off
> >!    write caching.  On <productname>FreeBSD</> use
> 
> I'm not where I can submit this as a patch right now, but there are two 
> things that should get fixed in the above:
> 
> --Saying "Consumer-grade IDE drives" isn't quite right; "Consumer-grade 
> IDE and SATA drives" would correctly label the scope of the problem.
> 
> --There's a typo on the next to last line here:  "can to turn off".

Thanks, both done.
-- 
  Bruce Momjian  <bruce(at)momjian(dot)us>        http://momjian.us
  EnterpriseDB                             http://postgres.enterprisedb.com

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

In response to

pgsql-docs by date

Next:From: ListaccountDate: 2007-12-10 15:26:12
Subject: Dangerous hint in the PostgreSQL manual
Previous:From: Greg SmithDate: 2007-12-10 14:27:31
Subject: Re: [GENERAL] full_page_writes = off?

pgsql-general by date

Next:From: Tom LaneDate: 2007-12-10 15:07:16
Subject: Re: Simpler dump?
Previous:From: Greg SmithDate: 2007-12-10 14:27:31
Subject: Re: [GENERAL] full_page_writes = off?

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group