Re: Is Diskeeper Automatic Mode safe? - Mailing list pgsql-performance

From Karl Denninger
Subject Re: Is Diskeeper Automatic Mode safe?
Date
Msg-id 4B01B40D.80901@denninger.net
Whole thread Raw
In response to Re: Is Diskeeper Automatic Mode safe?  (Greg Smith <greg@2ndquadrant.com>)
List pgsql-performance
Greg Smith wrote:
Robert Schnabel wrote:
Nope.  Forgive my ignorance but isn't that what a UPS is for anyway?  Along with a BBU controller.
If you have a UPS *and* a BBU controller, then things are much better--those should have a write cache that insulates you from the worst of the problems.  But just a UPS alone doesn't help you very much:
A UPS is just a controlled shutdown device for when things are working and mains power goes off.

Note the "when things are working" qualifier. :)

-- Karl
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