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- Newsgroups: comp.os.msdos.apps
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewsc!tjr
- From: tjr@cbnewsc.cb.att.com (thomas.j.roberts)
- Subject: Re: Stacker 3.0
- Organization: AT&T
- Date: Thu, 17 Dec 1992 19:46:55 GMT
- Message-ID: <1992Dec17.194655.23378@cbnewsc.cb.att.com>
- References: <Bz92rw.F0E@hkuxb.hku.hk>
- Lines: 34
-
- I upgraded from Stacker v 2.0 to Stacker 3.0.
-
- On my 80 MB drive, I originally had 41 MB free; after installing
- 3.0 and re-optimizing it (including conversion to 3.0 format),
- I now have 45 MB free. The REPORTED compression ratio is 1.97:1,
- and is consistent with obervations:
- There are TWO values of the "bytes free" on a drive -
- CHKDSK and LF (a UNIX lf clone) report different values.
- I don't know how they differ internally (I think DOS keeps
- a "bytes free" value; one reports this, one checks the
- FAT (???)). Under 2.0 these two values differed by 3-4 MB;
- under 3.0 they are within 500 kb. I believe this is due
- to the actual compression value coming much closer to
- the expected value of 2.0:1.
-
- The next day (!), I got the error "Read error on D:" (D: is my
- physical drive), and got a write-protected Stacked drive. Groan! -
- this is the problem everybody has been complaining about on this
- newsgroup. So I look it up in the manual, find it, follow the
- instructions (but I have no "surface scanning tool"), and it
- comes back. So I check it twice using the Stacker tools (Stacker
- can do a "surface scan" of a Stacker drive), and find no problems.
- Since then (3 weeks) I have had no problems. The files I was
- working with when the error occured are all either OK or were
- temporary files which have since been overwritten (.OBJ, .MAP,
- .EXE, ..., created by my C++ compiler).
-
- The Windows monitors of Stacker 3.0 are useless. I can see no
- need to continuously monitor the Stacker compression ratio, ...
-
- All in all, I think 3.0 is a useful improvement, if only because it
- seems to be more stable. 10% more space is nice, too.
-
- Tom Roberts att!ihlpl!tjrob TJROB@IHLPL.ATT.COM
-