Re: raw aio write guarantee

[<iodophlymiaelo@gmail.com>]

On 9/28/05, Valdis.Kletnieks@vt.edu <Valdis.Kletnieks@vt.edu> wrote:
> On Wed, 28 Sep 2005 01:56:05 PDT, iodophlymiaelo@gmail.com said:
>
> > I was asking what a user-application can do to prevent data loss, not
> > an application-user.
>
> Right.  However, if you actually care about the distinction between "made it
> to the disk cache" and "made it to the platter", those are things you'll
> want to address - in particular, if you have one of the evil disk drives
> I mentioned, there's very little a user application can do to work around it.
>

Erm, is the hardware problem really as great as you're implying? Have you
personally encountered any bad drives made by reputable brands? Mostly I've
only heard only of people crying wolf and then realizing it was a problem with
their reasoning or with the assumption that fsync() actually works properly on
kernel X, where X doesn't even have to be that ancient a version of linux ;-)