Re: [Xen-users] hostfs for xen?

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Nils Toedtmann wrote:

> > You could certainly use it to achieve the same goal.
> >    
> Not if my goal is to avoid network filesystems or - like John - to avoid
> networking at all! Hostfs is _much_ simpler (and more secure??) than nfs
>  
Which is a perfectly reasonable goal.  Keep in mind however you do not 
have to expose a virtual network interface to the real network so you 
can think of a virtual network interfaces as just another interdomain 
communication mechanism.
> or smbfs/cifs. nfs needs a portmapper daemon, a nfs-server, a lock-
> daemon, uses dynamic port allocations which are hard to firewall,
> authentication need to be configured properly; cifs/smbfs needs - at
> least - a nmbd & smbd deamon, sid<-->uid mapping and authentication need
> to be configured properly ... And you do not want to export a unixish fs
> to a unixish os via cifs ;)
>  
Actually, modern cifs clients provide unix extensions.  Also, you do not 
need most of the stuff you suggested.  The advantages of not having that 
much additional software running in dom0 is true.  However, a hostfs is 
a one-OS solution.  It requires significant engineering to extend to 
other platforms (like the BSD's, Windows, etc.).  That's something to 
consider.
There are cifs (and nfs) clients for Linux, Windows, *BSD, etc.  I'm not 
suggesting that this is the only solution but I certainly think it's a 
useful one.
> btw: vmware has another functionality they call "shared folders". That
> comes much closer to hostfs.
>  
Isn't shared folders implemented with Samba?

Regards,

Anthony Liguori

> /nils.
>
>
>  

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