Re: [GENERAL] full_page_writes = off?
- From: Greg Smith <gsmith(at)gregsmith(dot)com>
- To: Bruce Momjian <bruce(at)momjian(dot)us>
- Cc: PostgreSQL-documentation <pgsql-docs(at)postgresql(dot)org>
- Subject: Re: [GENERAL] full_page_writes = off?
- Date: Mon, 10 Dec 2007 09:27:31 -0500 (EST)
- Message-id: <Pine(dot)GSO(dot)4(dot)64(dot)0712100918320(dot)14895(at)westnet(dot)com>
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".
--
* Greg Smith gsmith(at)gregsmith(dot)com http://www.gregsmith.com Baltimore, MD
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