[Pvfs2-users] Out of space

[Rob Ross]

I agree with your characterization of the NBD solution as a crazy hack :).

We don't have a tool for rebalancing at this time. Renaming a directory 
and then recursively copying its contents back into place is one (albeit 
inefficient) way to get data redistributed.

Rob

Lars Roland wrote:
> On 5/3/06, Rob Ross <rross at mcs.anl.gov> wrote:
>> Hi Lars,
>>
>> If you're running LVM, can you just add the disks into the existing 
>> servers?
> 
> Nope there is no space left neither for expansion cards nor for extra
> disks, so I cannot add any internal or external storage to the
> servers. I will need to do some network stuff, NBD is the best option
> as I see it, it should also be fairly well tested.
> 
> It has been a long time since I checked the PVFS2 code, but would it
> not be possible to do some restructuring of the existing data (in
> petal/RAID rebuild style) ? - i.e. run some job that redistribute the
> existing data across the new server layout ?, this will of cause
> degrade the I/O while redistributing, but to me this is a better
> option than creating some crazy NBD hack.
> 
> 
> -- 
> Lars
>