[lustre-discuss] What happens when a file grows

[E.S. Rosenberg]

Great, thanks for the replies!

Reading about all the features lustre sound like the "I'm a Linux"
commercials they made a few years back :)

On Fri, Mar 31, 2017 at 4:30 AM, Dilger, Andreas <andreas.dilger at intel.com>
wrote:

> Typically OST usage is well balanced unless you have a single very large
> file that fills an OST. It is possible to use "lfs migrate" to move files
> to other OSTs and restripe them as needed to balance space.
>
> In the 2.10 release we will have progressive file layouts (PFL) that will
> allow a file to increase striping as the size grows, which will largely
> avoid this problem.
>
> Cheers, Andreas
>
> > On Mar 30, 2017, at 14:59, E.S. Rosenberg <esr+lustre at mail.hebrew.edu>
> wrote:
> >
> > Hi all,
> > I was wondering about the following scenario:
> >
> > What happens when a file is created without striping and it gets larger
> then the available space on the OST that it is on?
> > Does it now fail to  write because adding stripes is impossible after a
> file exists or will the rest of the file get written to a different OST and
> the user never notice?
> >
> > Thanks,
> > Eli
> > _______________________________________________
> > lustre-discuss mailing list
> > lustre-discuss at lists.lustre.org
> > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
>
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