Re: mounting raid5 with different unit values

[Raz <raziebe@xxxxxxxxx>]

On 10/7/07, Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> wrote:
>
>
> On Sun, 7 Oct 2007, Raz wrote:
>
> > Hello
> > I am trying to mount xfs over raid5. I am trying to mount it with
> > different values than
> > the true ones. the mount fails with a general error of :
> > mount -osunit=6144,swidth=18432 /dev/md1 /d1/
> > mount: wrong fs type, bad option, bad superblock on /dev/md1,
> >        or too many mounted file systems
> >
> > the true values are:
> > xfs_info /d1/
> > meta-data=/dev/md1               isize=256    agcount=32, agsize=5687296 
> > blks
> >          =                       sectsz=4096  attr=0
> > data     =                       bsize=4096   blocks=181989888, imaxpct=25
> >          =                       sunit=256    swidth=768 blks, unwritten=1
> > naming   =version 2              bsize=4096
> > log      =internal               bsize=4096   blocks=32768, version=2
> >          =                       sectsz=4096  sunit=1 blks
> > realtime =none                   extsz=3145728 blocks=0, rtextents=0
> >
> >
> > this same command did work on 2.6.15  while it failing on 2.6.17 .
> > why ?
> > --
> > Raz
> >
> >
>
> Good question but also be alert that 2.6.17-2.6.17.6 will/may corrupt your
> XFS filesystem due to a nasty bug.
>
> Justin.
>
I am using patched xfs ( the patch of 2.6.17.7)

-- 
Raz