Re: BBU still needed with SSD?

Andy wrote:
> SSD has its own cache. And in certain models such as Intel 320 that cache is backed by capacitors. So in a sense that
cacheacts as a BBU that's backed by capacitors instead of batteries.  
>

Tests I did on the 320 series says it works fine:
http://archives.postgresql.org/message-id/4D9D1FC3.4020207@2ndQuadrant.com

And there's a larger discussion of this topic at
http://blog.2ndquadrant.com/en/2011/04/intel-ssd-now-off-the-sherr-sh.html
that answers this question in a bit more detail.

--
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD