Re: changing xfs file system tunnings(sunit,swidth) after mkfs.xfs

["Raz Ben-Jehuda(caro)" <raziebe@xxxxxxxxx>]

ahha...
but did you ever tried to set an sunit value bigger than the one
set during the mkfs.xfs ?

On 3/27/07, Nathan Scott <nscott@xxxxxxxxxx> wrote:
> On Mon, 2007-03-26 at 22:25 +0200, Raz Ben-Jehuda(caro) wrote:
> > I want to change the sunit,swidth of a file system which
> > was already created with a different tunnings, or at least
> > mount it with a different values.
> > Is it possible ?
>
> >From the XFS section in mount(8) ...
>
>    sunit=value and swidth=value
>        Used to specify the stripe unit and width for a RAID device or a
>        stripe volume.  value must be specified in 512-byte block units.
>        If this option is not specified and the filesystem was made on a
>        stripe volume or the stripe width or unit were specified for the
>        RAID device at mkfs  time,  then  the  mount  system  call  will
>        restore the value from the superblock.  For filesystems that are
>        made directly on RAID devices, these  options  can  be  used  to
>        override  the  information  in  the superblock if the underlying
>        disk layout changes after the filesystem has been created.   The
>        swidth  option  is  required if the sunit option has been speci‐
>        fied, and must be a multiple of the sunit value.
>
>
> cheers.
>
> --
> Nathan


--
Raz