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Re: [dm-devel] Device Mapper MultiPath



On Tue, Mar 31, 2009 at 08:25:59PM -0400, Konrad Rzeszutek wrote:
> On Tue, Mar 31, 2009 at 09:07:08PM -0300, Rodrigo Nascimento wrote:
> > Hi All,
> > 
> > I'm a student of computer sciences and I'd like to collaborate with the
> > development of the DM-MP.
> > I know that maybe you received this kind of message during all time, but I
> 
> I think you are the first :-)
> 
> > really want to help, with anything.
> 
> Shakedown help would be nice. As in, trying to yank stuff underneath it, 
> add new block disks, remove them, add them, remove them, edit the
> multipath.conf file and issue 'reconfigure', resize the maps, 
> then add 1000+LUNs, and while they are being added, start removing the
> LUNs, then for extra fun call 'dmsetup remove_all' while in another
> thread you run 'multipath'. Ooh, and see if there are any memory leaks
> while this all is being done.
> 

What I would really like to see is online resizing of non-partitioned dm
block devices.  I would love to be able to resize an underlying dm-mp block
device, and the just grow the filesystem without using a extra, un-needed,
volume manager layer.  I remember some of this being talk about a while ago,
but I don't think anything ever happened.

Andy


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