[Lustre-devel] Re-direction inodes

[Nikita Danilov]

Peter Braam writes:
 > Hi Nikita -
 > 
 > I have a need in doing an architecture for a customer of a Lustre client
 > feature to have different data/page caches associated with an inode,
 > depending on the user that accesses it.    So when a file is read, user A
 > will read different data from user B (assume the same for writes, but I
 > think this is a read-only feature).
 > 
 > I remember that in the Coda file system we could easily re-direct I/O to
 > another inode using almost standard features in the VFS/page caches.  Is
 > this still the case?  Would this work for the purpose I describe above?

I am not sure how this can be done with the VFS mechanisms. Alex pointed
out that some kind of stacked file system similar to smfs can be used
for this purpose.

 > 
 > Thanks.
 > 
 > Peter

Nikita.