Re: BBU Cache vs. spindles - Mailing list pgsql-performance

From Kevin Grittner
Subject Re: BBU Cache vs. spindles
Date
Msg-id 4CC02ED30200002500036C24@gw.wicourts.gov
Whole thread Raw
In response to Re: BBU Cache vs. spindles  (Bruce Momjian <bruce@momjian.us>)
Responses Re: BBU Cache vs. spindles
List pgsql-performance
Bruce Momjian <bruce@momjian.us> wrote:

> full_page_writes is designed to guard against a partial write to a
> device.  I don't think the raid cache can be partially written to

So you're confident that an 8kB write to the controller will not be
done as a series of smaller atomic writes by the OS file system?

-Kevin

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