[comp.sys.atari.st] Slow file creation on hard drive

kron%aiki@Sun.COM (Kenneth Kron) (08/02/89)

I have a 40 meg. HD (4 10 meg. partition) hooked up to my atari
(It's an ST-506 - and I'm using the Berkley Mirco System BMS-200
board with an adaptech 4000)  the problem is that when I create a
file it takes an extremely long time. 

Berkley says it 'cause of the way TOS searches the FAT and suggested
I either get 
	1) a pd FAT caching program
	2) Hard Disk Sentry (a program that moves all of the files to
	the end of the FAT) 
	3) wait for TOS 1.4 (The answer to the ultimate question, which
	we all know can't coexist with the ultimate question).
	:-) :-) :-)

Just wondering if anyone else has any experience with this
or any usefull information!!!!
These opinions don't even belong to me any more.
internet: kron@sun.com

hcj@lzaz.ATT.COM (HC Johnson) (08/02/89)

In article <118953@sun.Eng.Sun.COM>, kron%aiki@Sun.COM (Kenneth Kron) writes:
> I have a 40 meg. HD (4 10 meg. partition) hooked up to my atari
> (It's an ST-506 - and I'm using the Berkley Mirco System BMS-200
> board with an adaptech 4000)  the problem is that when I create a
> file it takes an extremely long time. 
> 
> Berkley says it 'cause of the way TOS searches the FAT and suggested
> I either get 
> 	1) a pd FAT caching program
> 	3) wait for TOS 1.4 (The answer to the ultimate question, which
> 	we all know can't coexist with the ultimate question).
> 	:-) :-) :-)
> 
> Just wondering if anyone else has any experience with this
> or any usefull information!!!!
> These opinions don't even belong to me any more.
> internet: kron@sun.com
You have just discovered the wheel (or maybe an axle)!
This is the ifamous S L O W copy to a hard disk as it fills up.
Generally a file system > 10 MEG is just horible slow.

I started using FASTFAT when it came out and it makes all copies about the
same.  16 MEG file systems work as fast as small ones.

I now have tos 1.4 and it is just as fast without any help.

By the way, Did you know you can really buy tos 1.4 from Atari.  
Problem is it costs you $172.  (They call it the developers documentation +
TOS 1.4).  Still, for that price, it available to anyone.

Howard C. Johnson
ATT Bell Labs
att!lzaz!hcj
hcj@lzaz.att.com

alderaan@tubopal.UUCP (Thomas Cervera) (08/04/89)

In article <118953@sun.Eng.Sun.COM> kron%aiki@Sun.COM (Kenneth Kron) writes:
> [...]
>Just wondering if anyone else has any experience with this
>or any usefull information!!!!

  If there's any way to create more than four partitions on your disk (the
driver you're using must be able to handle this), this should help while
waiting for TOS1.4. The problem is, indeed, the very slow FAT handling
of older GEMDOS releases.
  Re-organizing your disk could also accelerate the FAT search if you're
using a caching program because the cache hits much better if a file's FAT
entries are contiguous. For re-organizing I recommend the use of Simon
Poole's REORG/DLII (great stuff, Simon).

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