ATA drive TIMEOUT READ_DMA errors since adding power savings
kirk at strauser.com
Mon Nov 13 16:37:38 UTC 2006
On Monday 13 November 2006 9:57 am, Michael Knoll wrote:
> I added a power down timer on one of my harddrives, and started
> getting READ_DMA and WRITE_DMA timeouts. Is it possible these are
> occuring becuase the drive is spun down and FreeBSD isn't waiting long
> enough for it to spin up? Everything else seems to be working.
> If that is the problem, is it possible to extend the timeout to
> eliminate these messages clouding my logs?
First, what kind of machine is this? If anything other than a laptop, be
aware that most harddrives have lifetimes measured in hundreds of thousands
of hours, but a small number of thousand spin-ups. If your drive is
cycling many times a day, you could get a nasty surprise in a relatively
short amount of time.
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