[Networker] Index size confusion

Hi,

I'm really confused here, and I'm hoping someone can please clear up myconfusion.

I hunted around in the documentation but could only find informationregarding level 9 backups for indexes, never incrementals, but nothingabout numercs.

When an incremental is run on a client (assuming the 'No save index'option is not enabled for the group) then NW performs a level 9 of theindex last, following completion of the backup of the client data. Thisshould be capturing all the changes in the client index since the lastfull of the index. As a result, the size of the index backup shouldcontinue to increase (or possibly remain the same as far as what mminforeports) until the next full, but it should not decrease. This is thebehavior that I have always observed.

However -- and here's where I'm confused -- I would have anticipated,therefore, that if you ran a numeric (let's say a level 5) then anysubsequent level 9 backups of the index should only capture the changesin the index since the last lower numbered backup, which in this case isa level 5. But this does *not* seem to be what's happening based on thereported size of the index backups. Instead, it appears that subsequentlevel 9 backups are capturing all changes since the previous full;they're not just going back to the previous numeric. They're eitherremaining at the same size or they're increasing in size as if the 5 wasnever run.

1. I understand that index backups are treated differently than regulardata in that incrementals are never run on indexes, but is it in factthe case that a level 9 on an index always goes all the way back to thefull even if there are intermediate numerics

2. In other words, it doesn't matter what level is run on an index, it'salways going to go all the way back to the previous full?

If so, then this is not the case with regular data, right? With regulardata, if a level 9 follows a level 5 then it would not grab everythingthat's changed since the previous full. It should only grab what'schanged since the 5, right? Or if several 5s were run in a row then eachwould go all the way back to the full since the full is that last lowernumbered backup (level 0), right?


Thanks.

George

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George Sinclair
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