Request for opinions - gvinum or ccd?

[krad]

Its all done on write, so if you update the file it will have multiple
copies again

This explains it quite well

http://blogs.sun.com/relling/entry/zfs_copies_and_data_protection

-----Original Message-----
From: Wojciech Puchar [mailto:wojtek at wojtek.tensor.gdynia.pl] 
Sent: 01 June 2009 10:05
To: krad
Cc: 'Mike Meyer'; freebsd-hackers at freebsd.org; xorquewasp at googlemail.com
Subject: RE: Request for opinions - gvinum or ccd?

> You shouldn't need to alter the copies attribute to recover from disk
> failures as the normal raid should take care of that. What the copies is

I don't think we understand each other. I say that when i want 2 copies, 
ZFS should rebuild second copy if it's gone and i run resilver.

it does not, what doesn't make sense for me.