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- Path: sparky!uunet!stanford.edu!ames!purdue!knapp
- From: knapp@cs.purdue.EDU (Edgar Knapp)
- Newsgroups: comp.sys.mac.apps
- Subject: Re: AutoDoubler & Norton Filesaver slows Mac down?
- Message-ID: <19279@ector.cs.purdue.edu>
- Date: 17 Aug 92 22:15:32 GMT
- References: <1992Aug16.155129.27131@uniwa.uwa.edu.au> <1992Aug17.185732.7819@cucbs.chem.columbia.edu>
- Sender: news@cs.purdue.EDU
- Organization: Department of Computer Science, Purdue University
- Lines: 30
-
- In article <1992Aug17.185732.7819@cucbs.chem.columbia.edu> pollard@cucbs.chem.columbia.edu (Tom Pollard) writes:
- >gukgn@uniwa.uwa.edu.au (Kim Guan Ng) writes:
- >>I currently have Norton Filesaver installed on my Mac and am considering
- >>buying Autodoubler as I am running out of HD space (who isn't :-) ).
- >>However, I remember glancing through articles fairly recently saying
- >>that AD slows down any machine which needs to frequently write temporary
- >>files such as Filesaver. Is this true, because if the slowdown is great,
- >>I may want to reconsider buying AD (or give up Filesaver).
-
- The problem here is not so much the slow down, but the fact that
- FileSaver is rendered ineffective by programs that generate lots of
- temp files. This is because file recovery utilities keep a record of
- only the most recently deleted files.
-
- Consider the case in which you delete file x, after which AD runs,
- creating and erasing enough temp files so that x is no longer on the
- recovery list. When you notice that you deleted x in error, and try to
- recover it, you are out of luck.
-
- Not that for similar reasons running a disk optimizer (such as
- Disk Express) makes file recovery much less reliable. This is because
- the sectors used by the file to be recovered might have been reused in
- the optimization process, overwriting the original data.
-
- In short: It is probably a waste of resources running a file recovery
- utility, a defragmenter, and a compressor all at once in the
- background.
-
- Edgar Knapp
-
-