Re: [MooseFS-Users] Min goal to prevent data loss

[Wolfgang <moo...@wo...>]

Hi!

No - Goal of 1 means that each chunk of one file will be stored only 
once on the chunkservers. All chunks of a file are still distributed 
across all your chunkservers - but only one copy of each chunk.
So if one of your chunkserver crashes - your files with goal=1 will be 
corrupted.

If you have goal=2 and one of your chunkserver crashes - moosefs will 
immediatly start duplicating the undergoal chunks to reach the goal of 2 
for all chunks again.

Greetings

Wolfgang


On 2017-05-12 15:54, David Myer wrote:
> Hi,
>
> The MooseFS best practices recommend a min goal of 2 to prevent 
> eventual data loss. Wouldn't a file exist in 2 places if the goal was 1?
>
> Thanks,
> Dave
>
>
>
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>
>
> _________________________________________
> moosefs-users mailing list
> moo...@li...
> https://lists.sourceforge.net/lists/listinfo/moosefs-users