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

> ufsdump is the problem, not ufsrestore. If you ufsdump an active
> file system, there is no guarantee you can ufsrestore it. The only way
> to guarantee this is to keep the file system quiesced during the entire
> ufsdump.  Needless to say, this renders ufsdump useless for backup
> when the file system also needs to accommodate writes.

This is why there is a ufs snapshot utility.

BTW: If it no already known, star does not yet support ZFS ACLs but it 
otherwise implements the ufsdump features in a file-system independent way.

Jörg

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