zfs discuss - May 2008 - Where is zfs attributes kept?

Hi,

If I delegate a dataset to a zone, and inside the zone, the zoneadmin 
set the attribute of that dataset, where is that data kept?  More to the 
point, at what level is that data kept? In the zone?  Or on the pool, 
with the zone having privilege to modify that info at the pool?

I''m looking into a case where a claim is made that a zone reboot wipes 
out recordsize setting.  I looked with a simple DTrace script and have 
not found this to be the case.  But, I want to know if it''s possible, 
perhaps I''m missing something.

CT

Christine Tran wrote:
> Hi,
>
> If I delegate a dataset to a zone, and inside the zone, the zoneadmin 
> set the attribute of that dataset, where is that data kept?  More to the 
> point, at what level is that data kept? In the zone?  Or on the pool, 
> with the zone having privilege to modify that info at the pool?
>
> I''m looking into a case where a claim is made that a zone reboot
wipes
> out recordsize setting.  I looked with a simple DTrace script and have 
> not found this to be the case.  But, I want to know if it''s
possible,
> perhaps I''m missing something.
>   
Attributes are stored on disk. For more information see the
on-disk format, chapter 5 - ZAP (ZFS Attribute Processor)
http://www.opensolaris.org/os/community/zfs/docs/ondiskformat0822.pdf

-- richard