Richard Elling <richard.ell...@gmail.com> writes:

> It can go very fine, though you'll need to set the parameters yourself,
> if you want to use different settings.  A few weeks ago, I posted a way
> to see the settings, which the time slider admin tool won't show.  There
> is a diminishing return for exposing such complexity, but you might try
> an RFE if you feel strongly about it.
> http://opensolaris.org/jive/thread.jspa?messageID=353761

I meant in terms of per directory not frequency.


>
>> If I wanted to be able to go back in time with just /etc for example.
>> Is it also possible?
>>   
>
> Possible? Yes, to some degree.  But that is probably not worth the
> complexity
> involved. The contents of /etc just doesn't change very
> often. Snapshots are
> done on a per-file system basis and /etc doesn't really warrant a
> separate file
> system -- and I'm not sure you can separate /etc from /, since it is
> required
> early in the boot sequence.

The part about etc not changing may be true after you've established a
good setup.  But while getting there, I've always found it a good
choice for frequent backup.  That has been on linux, not solaris.

Maybe Osol doesn't use etc as much as linux systems.

But then other directories may need more frequent backup than the
filesystem they are on.  I guess one could create a filesystem for
such a directory.

And I think I may be getting confused between filesystem snapshots and
BE snapshots. The etc directory must be included in a BE.  So would BE
snapshots cover all of rpool?  Or just `/' or are they even different.

The whole scheme I see with gnu/bin/df is kind of confusing too.  Its
not really even clear if /etc is part of rpool.

zfs list -r rpool doesn't show etc, just '/'so I guess not.


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