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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Tore Lund <tl32@next.online.no>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Sidetracked: why gjournal over soft-updates (Was: Re: UFS2
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>> than SU
>
> The caching can be stopped by putting "hw.ata.wc=0" into
> /boot/loader.conf.  Doesn't that settle this point about safety?


but that's not needed. UPS is enough. even if your machine will 
halt/crash/panic, drive cache will be written then.

> Since we use softupdates and others use gjournal, one suspects that
> there are reasons why "real" journaling systems have not been adopted.

softupdates works very well, and doesn't write the same thing twice, like 
journaling.