Re: Block-level CRC checks

On Thu, Oct 2, 2008 at 1:07 PM, Bruce Momjian <bruce@momjian.us> wrote:
>> If we're double-buffering the write, I don't see where we could be
>> introducing a torn-page, as we'd actually be writing a copied version
>> of the buffer.  Will look into this.
>
> The torn page is during kernel write to disk, I assume, so it is still
> possible.

Well, we can't really control too much of that.  The most common
solution to that I've seen is to double-write the page (which some
OSes already do regardless).  Or, are you meaning something else?

-- 
Jonah H. Harris, Senior DBA
myYearbook.com