[BBLISA] shared network disks - vs gfs - vs distributed filesystem - vs ...

[Tom Metro]

Edward Ned Harvey wrote:
> I think it would be awesome if /scratch 
> looked the same on all systems.  Does anyone know of a way to "unify" 
> this storage, without compromising performance?  Of course, if some 
> files reside on server A, and they are requested from server B, then the 
> files must go across the network, but I don't want the files to go 
> across the network unless they are requested.  And yet, if you do 
> something like "ls /scratch" you would ideally get the same results 
> regardless of which machine you're on.

Similar to what John Hanks suggested...export each node's scratch via 
NFS and on each node combine all the remote scratch disks with the local 
scratch using unionfs, with of course the local disk getting priority 
for writes.

  -Tom

-- 
Tom Metro
Venture Logic, Newton, MA, USA
"Enterprise solutions through open source."
Professional Profile: http://tmetro.venturelogic.com/