From: "Robert Comer" 

Differential backs up everything changed since the last "full"
backup. (at the most 2 backups to restore.)

Incremental backs up everything newly changed since the last backup of any
kind (you need to restore at most how many incremental backups you have
between full backups)

- Bob Comer


"Ellen K"  wrote in message
news:009167.4ab3a8{at}harborwebs.com...
> What is exactly the difference between differential and incremental?
>
> > From: "Robert Comer" 
> > And differentials are a lot less complex than a SAN.
> > For years and years daily backups had to be differential because of
> > time/speed constraints on the AS/400, but now I do full data backups
daily
> > too.
> > fwiw, restoring from a differential backup isn't all that complex as
long as
> > you go with differential and not incremental backups. (I've had to do it
> > twice in my career -- so far.)
> > - Bob Comer
> > "Ellen K."
 wrote in message
> > news:uprg20h9im0ha4epbddkk846ndo50cpv0s{at}4ax.com...
> >> Ha, similarly I insist on full backups, I don't wanna get involved with
> >> differentials.
> >>
> >> On Mon, 9 Feb 2004 21:37:17 -0500, "Geo."
 wrote in
> >> message :
> >>
> >> >"Robert Comer" 
wrote in message
> >> >news:4025b418{at}w3.nls.net...
> >> >> I just don't trust distributed storage schemes in
general, added
> >> >complexity
> >> >> is a failure point that doesn't need to be there...
> >> >
> >> >added complexity can also increase recovery times when you have to
> > rebuild
> >> >the volume and restore data. (or not)
> >> >
> >> >Geo.
> >> >
> >>

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