hw.ata.wc vs soft updates
Alex de Kruijff
freebsd at akruijff.dds.nl
Thu Oct 2 03:39:01 PDT 2003
On Wed, Oct 01, 2003 at 11:21:44AM +0400, Sergei Vyshenski wrote:
> Is it correct and/or clever to use BOTH
> 1) soft updates enabled and 2) hw.ata.wc=0
> on FreeBSD-4.9 system?
> Will it enhance chances to have consistent disk
> after power loss?
Yes. That is the reason its disabled by defauld.
> How much slower it will be compared to the case of
> 1) soft updates enabled and 2) hw.ata.wc=1
The difference can be noticed. So i guess 15 or 20%. However I have no
experince what so ever with this.
> Thanks in advance for any comment.
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