[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: MicroDrive Re-Do-Do

Steve ][ wrote:

I will try that. I have a new CF card on the way as well so I can play
"process of elimination", hopefully I will learn something. I my RAM
card and CF/MicroDrive a couple of years ago so maybe something just
met its MTBF...

Thanks for the thought.


A single marginal DRAM chip, or a nearby source of noise, or even a
very unlucky cosmic ray shower can change data in memory, which, if
it affects a critical file system structure, can corrupt the disk.

You might try running a good memory test overnight and see if anything
shows up.


On Sun, 29 Jul 2007 16:41:01 -0700, "Michael J. Mahon"
<mjmahon@aol.com> wrote:



Steve ][ wrote:


The system does pass the "cold boot" ROM test
(Control-OpenApple-ClosedApple-Reset) on my ROM3 machine.

I have a 4meg card from GSE-Reactive, a MicroDrive, and a VOC in the
machine, that's it.


Try running for a while without the memory card (ouch!) and see
if your disk integrity problems improve...

GSOS "caches" disk file structures in memory, and while they are
there, they are vulnerable to anything that could change the contents
of memory.  Once a corrupted block is written to disk, the problem
is "permanent" and any subsequent damage is cumulative.



On Sun, 15 Jul 2007 18:07:07 -0700, "Michael J. Mahon"
<mjmahon@aol.com> wrote:




Steve ][ wrote:



And the frustration continues. Booting into GS/OS 6.0.1, copying
around a lot of files, selecint "Quit" from the Finder immediately
crashes to

Unable to load/unload
  Type = 8003
  ID = 0004FF04
  ERR1E06

This is making my teeth hurt.


I think you have a problem different from the MicroDrive and
the contents of the flash card.

Does your system pass diagnostics, like a memory test?

Are your problems "cumulative", suggesting progressive disk
corruption, or are files OK one day that "caused problems"
the day before?


-michael

NadaNet file server for Apple II computers!
Home page:  http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it's seriously underused."