On Mon, 4 Sep 2006, Ferdinando Pasqualetti wrote:

> Too bad the disk-to-tape operation of spooling is done suspending the 
> backup-to-disk operation (no concurrency with double buffering) and this 
> limits the usefulness of spooling (as far as I know).

When multiple backups occur, they tend to interleave, so the overall speed 
increases.

The _main_ advantage of spooling is reduced tape wear, however when doing 
incrementals it has huge advantages in allowing 20 or more jobs to run 
simultaneously and dump to tape when finished.

AB

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