[comp.sys.ibm.pc] Speedstor - does it work somewhere ?

kirchner@uklirb.UUCP (Reinhard Kirchner) (04/17/89)

Hello,
the subject is a little provoking, but that should be.

what happened:

I have an EPSON Equity III+ with a 40 MB disk, running under DOS 3.3.
Around Christmas I bought a second harddisk, which was not in the
bios-drivetable. I did not want to give away disk storage by selecting the
next smaller disk an bought speedstor.

With speedstor I could prepare the disk without any problem. This means:
- I did low level formating
- I did full diagnosis
- I partitioned the disk to one 32 Meg and seven small partitions,
  all 'compatible dos' according to speedstor terminology.
- I formated these partitions.
- I installed the Speedstor harddisk driver.

All was successfull, but then I activated xcopy to bring data onto the
large partition, and I got there
THRASH

within subdirectories I found sectors from my files, one of the smaller
partitions ( about 6 megs ) reported 'disk full' after copying appr. 1 Meg
onto it and the like. Strangely enough, sometimes files where o.k., but not
all, and this is not enough to work with.

Two weeks ago I tried on another computer, results were comparable.

I told the whole story to my lokal distributor and also to the people
from Storage Dimensions ( the maker of speedstor ) at the CeBIT, but nobody
could help me.

Another hint:
There are some Siemens-PC in our University, running under DOS 3.2 or 3.21,
they use Speedstor successfully.

on my first, true DOS disk, I have two partitions, one for the system,
and a second one, which is according to DOS 3.3 split into two logical
drives. Speedstor recognizes this second partition as 'extended DOS',
but it cannot create such a partition.

My Version of Speedstor is 5.13b

Does anybody out there have similar expiriences ? Can anybody explain this ?

HELP !!! HELP !!!! HELP !!!!!

To use the disk at all I then reformated it under plain DOS, selecting
a near fit from the drive table ( costing 20 MB ). Now there is one
extended-DOS partition on it, containing 6 logical drives. All runs perfect.

R. Kirchner

Univ. of Kaiserslautern              uklirb!kirchner
W-Germany

jc58+@andrew.cmu.edu (Johnny J. Chin) (04/19/89)

I believe that some DOS version have a 4 partition per drive restriction.
You may wish to try redoing the partitions with PARTED and make fewer part-
itions.

As an additional piece of information ... because you don't have that part-
icular drive time in the BIOS table, you will most likely loose storage
space ... even if SpedStor partitions and formats the entire partition for
DOS use.  This is because DOS uses BIOS calls which may circumvent the BIOS
that SpedStor places in effect with the DEVICE=HARDRIVE.SYS in CONFIG.SYS.

I hope that this help.
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Disclaimer:   The views expressed herein are STRICTLY my own, and not CMU's.