> Recently I find the nbackup is very very slow. For my 40G database, it takes
> almost 24 hours to finish the 0 level, for the rest levels it also takes 
> several
> hours.

NBackup should run at near raw HDDs performance levels -- 100mb/s.

> Does anyone know what is the normal time consumption for nbackup? Is my
> case very normal? Or what can potentially affect the speed of nbackup. Do I
> do anything wrong with using the database or deploying database to make
> this increment backup very slow?

Please check the v2.5.2 and v2.5.3 release notes, there were some bug reported 
where nbackup got "hung" which were fixed in those releases.


Sean

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