[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
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RZG (Rechenzentrum Garching) fax +49-89-3299-1301
Computing Center of the Max-Planck-Gesellschaft (MPG) and the
Institut fuer Plasmaphysik (IPP)
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