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- Path: sparky!uunet!mcsun!news.funet.fi!hydra!klaava!jliukkon
- From: jliukkon@klaava.Helsinki.FI (Juha-Matti Liukkonen)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: MAJOR HELP: IDE drive trashed (w/Stacker)
- Message-ID: <1992Sep12.212017.4942@klaava.Helsinki.FI>
- Date: 12 Sep 92 21:20:17 GMT
- Organization: University of Helsinki
- Lines: 90
-
- Hello, fellow netters.
-
- I ran into something rather odd, and was hoping that maybe one of You
- could enlighten me a bit about the subject.
-
- First, my machine is a self-made 386SX, 25 MHz, 32K CPU cache. AMI BIOS
- 4/90 (?); cache can be set off/on/post-write, and the bus speed to be
- CPUCLK/6 (= 8 1/3 MHz) or CPUCLK/4 (12.5 MHz). 4x1 Mb SIMM. No-name
- multi-I/O + IDE ctrlr, Trident 8900C 3.01 1 Mb, Soundblaster 1.5, and
- that's about it. Oh, and of course the culprit: IDE-HD Conner CP3044; 42
- Mb, 25 ms, drive type 17 (translating).
-
- On the software side, I run DOS 5, himem 2.78, UMB_DRVR 5.22 + HIMEM
- 2.78 (or occasionally QEMM 6.00), Stacker 2.0, 4DOS 4.01, and of course
- Windows 3.1.
-
- Now on the other day we put together a computer for a friend of mine,
- and we had to test it's floppy drive (it was faulty). We tested it on my
- computer; later that night (around 12:30 am) I came back home and bolted
- my own machine together. I changed the rigged HD and floppy drive leads
- to new ones we got with the purchase of the other 'puter that day.
-
- When I booted the thingy, it first announced "stacker.com cheksum
- error". Right. I rebooted, and rebooted, and rebooted: I got about ten
- different error messages from different pieces of boot-up software.
- Finally, after 30 minutes, the thing booted up properly. I was, of
- course, dead worried.
-
- Now I ran the Stacker check program, scheck. No errors. CHKDSK? Yea.
- Plenty of dismembered sectors floating around. OK, fix 'em. Now, I have
- 50% of my files truncated to 4096 bytes. Thanks.
-
- Well, luckily I had 95% of the stuff backed up. I reformatted the
- drive, thought: "what the hell, I might as well re-partition this drive"
- (it's been in two chunks, since it was last formatted when DOS 3.3 was
- state of the art...) So I did. Then copy the system disk (I have found
- it handy to copy my /bin, /dev & /etc dirs to a proper boot up &
- recovery disk - the system can be recreated with single xcopy command -
- but I never thought I would have to use it :( Good thing I had it,
- though!) and install Stacker. I left 8 Mb un-stacked for Windows
- swapping. And then ARJ x -v a:backup.
-
- Now, all was OK until I began to run things. Windows would say read
- errors. I run SDEFRAG: "critical: read error". Stacvol trashed.
-
- OK. I run Norton's calibrate - and had this bright idea to try it while
- using the higher bus speed. Rigorous pattern testing on (80 patterns,
- 10x format... Heavy stuff!) Right on! The disk shows _average_ seek of
- 18.83 ms, and that's pretty fast for a _25_ ms disk, IMO! Now I
- installed everything (as before), and the thing seems to run flawlessly.
- After a day, I got a read error from Windows, and thought that maybe
- this isn't too good for the poor old disk. So, I switch back to the 8
- 1/3 MHz bus, run calibrate (just in case the speed affects the format),
- and re-install everything. (I've already learned to do this quite
- quickly...)
-
- Now, everything works fine if I use plain DOS. If I install Stacker, it
- will crash on a read error (the same thing that happened in the first
- place) when there's >5 Mb of stuff on the disk. OK, I try _without_
- Stacker. On plain DOS setup, everything's fine: install Windows, use it
- for half an hour, and the disk is totally screwed.
-
- I've done the last stage (on the low bus speed) for five times now,
- without a cache and experimenting with QEMM/UMB_DRVR/just HIMEM/
- nothing, DOS 5/4DOS ... I've been most careful, but obviously no matter
- what I do, after a couple of runs in Windows, the disk is scrap. FATs
- probably 100% f*cked. Norton's Disk Doctor, PC-Tools DiskFix, even
- CHKDSK do _not_ find _anything_ wrong with the disk. The file structure
- is just ... a mess.
-
- Needless to say, no test software can detect _any_ kind of faults in the
- drive. I've checked and re-checked all the connections inside the
- 'puter. The only anomaly I find (and it might've been this way before, I
- may have not noticed it) is that Norton's Disk Doctor goes pretty fast
- 50% of the disk, but then slows to about 1/5 speed for the rest of the
- disk (estimate about 1 min until it gets to halfway, then it increases
- to 5 min...)
-
- So. What gives? I'm in a flu, bad mood, and this is my only hard disk at
- the moment. I'm beginning to think that somehow the drive's controller
- logic may be faulty, but then, I'm no engineer. I would _really_
- appreciate any and all info about how to correct this situation!
-
- Please, e-mail to jliukkon@cc.helsinki.fi, thanks!
-
-
- --
- Juha Liukkonen, aka jliukkon@cc.helsinki.fi
- University of Helsinki, Dept. of Paranormal Investigations
- "Trust me, I know what I'm doing." - Sledge Hammer
-