> > <[1][2][3]
pasik@xxxxxx> wrote:
> > >
> > > * * *On Fri, Aug 27, 2010 at 02:53:54PM +0530, Dhananjay Goel
> wrote:
> > > * * *> * *This won't be straight forward. Think about USB
> memory/flash
> > stick.
> > > * * *> * *If every VM sees it, and simultaneously writes to it,
> the
> > > * * *filesystem
> > > * * *> * *in it will get corrupted immediately!
> > > * * *>
> > > * * *> * *--Why would it get corrupted immediately. Might be we
> can
> > just lock
> > > * * *a
> > > * * *> * *specific file which is being edited? Please suggest.
> > > * * *>
> > >
> > > * * *Because USB level has no idea about filesystems or files,
> or
> > locking
> > > * * *them!
> > >
> > > * * *Say you're using ext3 or NTFS in the VM for the USB
> device.
> > > * * *Those filesystems are NOT cluster-aware, ie. they're not
> aware of
> > any
> > > * * *sharing,
> > > * * *and they don't support any kind of sharing.
> > >
> > > * * *They expect exclusive access to the device.
> > >
> > > * * *If suddenly the bits on the device change from outside,
> > > * * *the filesystem gets corrupted very easily.
> > >
> > > * * *Also you wouldn't see the changes made in other VMs,
> > > * * *unless you made sure all the caches are refreshed etc in
> the VM
> > all the
> > > * * *time.
> > >
> > > * * *You'd need to use some cluster-filesystem (GFS, GFS2,
> OCFS2,
> > GPFS, etc).
> > >
> > > * * *-- Pasi
> > >
> > > * * *> * *Thanks,
> > > * * *> * *Dhananjay
> > > * * *>
> > > * * *> * *On Fri, Aug 27, 2010 at 2:49 PM, Pasi K*rkk*inen
