Re: Journal Based Backups
2006-06-14 08:52:37
>> On Tue, 13 Jun 2006 12:38:20 -0500, Mike <mikee AT MIKEE.ATH DOT CX> said:
> Comparison to the time of another file.
> [ more details ]
If you use incrementalbydate, then there is, similarly, no
recordkeeping communication. The differences are:
+ The timestamp used for comparison is the time of the beginning of
the previous incremental.
+ No intermediate list of files as a side effect.
These are probably not inconveniences, but might be.
Whenever folks get into incrbydate or any method that simulates it
(like yours, Mike), there are several things to look out for.
1) deleted files are NOT DETECTED. This makes sense if you think
about it: the list you generate can't contain the not-present
file. That means you must do a normal incremental occasionally.
2) Unpacked archives which retain datestamp information can be
skipped. This used to be a real pain, back in the days of 'dump'
and 'restore'.
- Allen S. Rout
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