Hi Ann,

> The delete marks the records as deleted - a deleted record takes
> more space than an undeleted record. It is removed only after
>
> 1) the transaction that performed the delete commits
> and
> 2) all transactions concurrent with that transaction complete
> and
> 3) some transaction attempts to read the record
>
> Gbak reads all records so it can perform the third action, as
> can sweep.

That is probably the best explanation I have seen for those new to FB
MGA for the 'why does my file size grow' question.

Adam