[Pvfs2-users] Is there a way to prevent MPI-ROMIO access?

[Luke Hindman]

Hi Bill,

This might seem like a naive solution, but what I've done in the past is to
simply stop the pvfs2-client daemon on all the nodes except the one I'm
running pvfs2-fsck from.  This worked for me, but I don't pretend to fully
understand all the ins and outs of pvfs2.

--Luke


-- 
Luke Hindman
Research Assistant
Computer Science Department
Boise State University, Boise, ID 83725
lhindman at onyx.boisestate.edu


On 8/31/07, Bill Wichser <bill at princeton.edu> wrote:
>
> We'd finally like to run an fsck to try and clean up our pvfs2
> filesystem (see my previous post about kernel crashes) but are concerned
> about users' jobs still accessing the filesystem while we are running
> these checks.
>
> From the kernel interface, this is easy, we simply disable the kernel
> module.  The other method though, direct access via the API/MPI-ROMIO,
> remains an issue.  Is there some method we can use to disable access
> through this interface?  Or can we just run the fsck without worrying
> about this?
>
> Thanks,
> Bill
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