[Pvfs2-users] removing storage devices

[Robert Latham]

On Fri, Apr 06, 2007 at 08:53:16AM -0400, Joe Georger wrote:
> Say I have a pvfs2 system using several raids as the underlying
> storage.  One of the raids is old and I want to replace it with a larger
> unit.  Is there a utility that would copy all the data off that raid to
> the rest of the pvfs filesystem and then let me remove it?  Or, how
> would I go about accomplishing this task?

This will be easiest if you have one raid per server.  There's nothing
storage-specific or fs-specific about the servers's storage directory,
so you can just tar it up on the old raid and unpack it on the new
one.  

- stop pvfs server
- tar up pvfs storage dir on old raid
- unpack on new raid
- set things up so the new raid is mounted where the old one was (or
  adjust the server config file
- restart pvfs server

That should do it.
==rob

-- 
Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Lab, IL USA                 B29D F333 664A 4280 315B