On Thu, Mar 11, 2010 at 12:25:22PM +0100, Asdo wrote:

Neil Brown wrote:

quoted

I am pleased to announce the availability of
   mdadm version 3.1.2

[CUT]

Significant changes are:
  - The default metadata has change again (sorry about that).
    It is now v1.2 and will hopefully stay that way. [CUT]
  

I remember some discussion about alignment for 1.1 and 1.2: is it possible 
on 1.2 to guarantee alignment of RAID device on the physical devices?
4K alignment would be needed on SSDs and 2TB disks w/ 4k physical 512b 
logical emulation. Actually on SSDs the alignment could be even more than 
4k, I am not sure.

is there any problems with this commit?
http://neil.brown.name/git?p=mdadm;a=commit;h=a380e2751efea7dfe8acf0b95419c65ccacfa7cf

Should we bypass the defaults and put 1.0 metadata on those?
What was the downside of 1.0 so that it was not made default?

this has been discussed to boredom

L.

-- 
Luca Berra -- bluca@comedia.it
         Communication Media & Services S.r.l.
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