Re: ext3 fs: no userspace writes == no disk writes ?

Rob van Nieuwkerk
2002-09-20T09:18:18Z

> Rob van Nieuwkerk wrote:
> > Hi Pádraig,
> >
> > Pádraig Brady wrote:
> >
> >>Rob van Nieuwkerk wrote:
> >>
> >>>Hi Alan,
> >>>
> >>>
> >>>>On Fri, 2002-09-20 at 00:04, Andrew Morton wrote:
> >>>>
> >>>>
> >>>>>There are frequently written areas of an ext3 filesystem - the
> >>>>>journal, the superblock. Those would wear out pretty quickly.
> >>>>
> >>>>CF is -supposed- to wear level.
> >>>
> >>>Yes I know.
> >>>
> >>>But I haven't been able to find any specs from any CF manufacturer
> >>>about this mechanism, percentage of spare sectors or number of allowed
> >>>write-cycles in general.
> >>
> >>me either.
> >>
> >>Why don't you just mount the fs ro ?
> >>
> >>Pádraig
> >
> >
> > Ehm .., because I need to store data on it ..
>
> Ehm, well remount,rw before you store data on it
> and remount,ro when finished?
>
> Pádraig.

Will think about it. Wondering how much this would impact performance
(in my application).

greetings,
Rob van Nieuwkerk