[Beowulf] Parallel file systems

[Rob Latham]

On Fri, Jan 22, 2010 at 11:27:41AM -0600, Sabuj Pattanayek wrote:

> Haven't set up PVFS, but after reading some articles I get the feeling
> that it can only write data using a striped method across IOD's.
> Gluster gives you a bit more flexibility and robustness since there's
> also the distribute write method and mirroring options.

There are a couple options with regards to PVFS data distribution.
"stripe across all" is one, but it's not difficult to change that to
stripe across one or some.

software mirroring, it's true, remains a research effort. In practice,
hardware redundancy serves many sites well.

==rob

-- 
Rob Latham
Mathematics and Computer Science Division
Argonne National Lab, IL USA