Hi,

V pá, 29. 02. 2008 v 22:57, Stephen Hahn píše:

> > >         - lack of awareness of ZFS and smf(5),
> > 
> > Why would a software administration need to be that aware of these
> > technologies?
> 
>   A big difference that I'm noticing in these discussions is that only
>   the people building distributions worry about packaging kernels,
>   drivers, and early system services.  If you're focused on packages
>   that deliver software that operates later (or after) system
>   initialization, you might not care about some specific issues.  smf(5)
>   awareness is needed to make early system services install correctly;
>   it also provides a means of identifying package dependencies that
>   isn't easily determinable from the object code.
> 
>   ZFS awareness is so we can have rollback with filesystem assistance.
> 

I saw many "disagree" which I would like to not comment before PSARC
review, but there is one thing I'm really worry about - it is that ZFS
vs. IPS vs. rollback. Please, don't try to count with ZFS rollback as
"patch backout" solution. It is not usable in production:

It is usual situation you deploy "quick fix" for several months and then
you need to backout it and apply official complex fix. And during that
timeframe you are changing your system (installing ISV packages, changes
in configuration etc.). How do you want to explain to admins "Hey, I'm
sorry, just remove all your changes you made for last months and reapply
them again"?

Best regards,

Milan

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