[OpenAFS-devel] Brief proposal on numbers

Hartmut Reuter reuter@rzg.mpg.de
Fri, 02 Nov 2007 19:23:46 +0100


Jim Rees wrote:
> John Hascall wrote:
> 
>   I don't suppose it can be changed, but the whole idea
>   of measuring and doling out volume-quota using 1KB units
>   seems pretty silly these days.
> 
> After more thought, I now think we should be consistent with "df."  We could
> add a "-h" flag to "fs set/getquota" for those who don't want to count
> zeros, and just use powers of ten (bytes).  Then df can convert to blocks
> internally.
> 
> % fs sq . 6T -h
> % fs lq -h
> Volume Name                   Quota      Used %Used   Partition
> user.rees                        6T
> % fs lq
> Volume Name                   Quota      Used %Used   Partition
> user.rees                5859375000

Nice, but in my eyes the bigger problem is that in the volume header the 
fields for quota and used blocks are afs_int32 limiting the maximum size 
to 2 TB. Even making them unsigned wouldn't let us go further than 4 TB.

Hartmut
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Hartmut Reuter                           e-mail reuter@rzg.mpg.de
					   phone +49-89-3299-1328
RZG (Rechenzentrum Garching)               fax   +49-89-3299-1301
Computing Center of the Max-Planck-Gesellschaft (MPG) and the
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