{"id":446,"date":"2009-07-13T06:32:38","date_gmt":"2009-07-12T20:32:38","guid":{"rendered":"http:\/\/nsrd.wordpress.com\/?p=446"},"modified":"2009-07-13T06:32:38","modified_gmt":"2009-07-12T20:32:38","slug":"basics-networker-differential-levels","status":"publish","type":"post","link":"https:\/\/nsrd.info\/blog\/2009\/07\/13\/basics-networker-differential-levels\/","title":{"rendered":"Basics – NetWorker differential levels"},"content":{"rendered":"

One question I’m often asked by people who haven’t used differential levels within NetWorker is what is the purpose of the different levels<\/em>? <\/em>In particular, this tends to lead to if I’m going to implement a differential backup, what level should I choose?<\/em><\/p>\n

While multiple differential levels grants considerable extra flexibility to NetWorker backups schedules, it can be confusing to the uninitiated. After all, if you’re currently only using fulls and incrementals, but want to insert a differential level, should you choose a level 1, level 2, level 3, etc.?<\/p>\n

If you’re only using one<\/em> differential level, it really doesn’t matter which level you use (though I have a suggestion); that is, all 9 differential levels interact with fulls and incrementals in exactly the same way when they are the only<\/em> differential level used.<\/p>\n

For this reason, if I’m only using one differential level in a schedule, I tend to use level 5. There’s a very simple reason for this \u2013 if at a later point I need to insert additional differential levels, then I can insert either lower or higher number levels around the 5 without having to change the level I’ve already been using, and with maximum flexibility as to the number of differential levels I can insert.<\/p>\n

Now, how do they relate to one another?<\/p>\n