Hi List,
There were numerous reports on data loss on BrailleNote family. There
were countless posts about it both on and off the list. I have several
theories, all related to hardware:
* Perhaps it might be because of the failing Flash Disk. When storage
devices fail, it might cause stored data to be corrupted. This causes
data or even file loss. Flash technology has finite number of write/erase
cycles (typically Flash will fail after editing it for about hundred
thousand times). This means, in everyday usage where you need to access
your data (about hundred times), your Flash Disk is guaranteed to last
about three years before you need to check it. And the notion that Flash
is safe from data loss is untrue: data loss haspens to ALL storage
devices, including Flash.
* There might be something wrong with the RAM chip. If there's something
wrong with the chip, the CPU cannot access it correctly, which might lead
to data loss (Alex Parks will be able to explain it in full detail).
These are my theories.
Cheers,
Joseph
----- Original Message -----
From: "donna" <[EMAIL PROTECTED]
To: "Chris Hallsworth"
<[EMAIL PROTECTED]>,"Bra
illeNote List" <[email protected]
Date sent: Tue, 7 Aug 2007 07:43:06 -0400
Subject: Re: [Braillenote] Re: Data loss
Hello everyone, I've been using a BrailleNote
for four years. The only time
I've lost data is when my Classic crashed.
In three years my PC has crashed
twice. Donna, you might not want to base a
decision on one person's
problems. There could be something wrong
with that unit. Donna Brown
I can do all things through Christ who
strengthens me. Philippians 4:13
----- Original Message -----
From: "Chris Hallsworth"
<[EMAIL PROTECTED]
To: "BrailleNote List"
<[email protected]
Sent: Tuesday, August 07, 2007 7:27 AM
Subject: [Braillenote] Re: Data loss
OK OK OK, if it happens regularly, then yes
I agree it's unacceptable; I
was talking about once in a while
situations, not regular ones. Sorry for
any confusion caused.
----- Original Message -----
From: "Donna Goodin" <[EMAIL PROTECTED]
To:
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>;
<[email protected]
Sent: Tuesday, August 07, 2007 12:28 PM
Subject: Data loss
Hi Chris, Mary, and all,
Actually, Chris, I have to strongly
disagree. though what you say about
PCs is true, that happense *very rarely. If
the BN frequently loses
data, especially if there's been no crash of
the device, that is an
unacceptable flaw. If you can't mostly rely
on your device to preserve
data, why bother owning it in the first
place.
I currently use a competitor's product--the
one that came out in fall of
2003. I can't say I *never lose data, but
if I do, it's because the unit
has locked up and a cold reset must be
performed, so I know that any data
that hasn't been backed up is lost. I'm on
this list because I was
considering purchasing a BN. If what Mary
Ellen describes is a pervasive
problem with these units, I think that just
took the BN right off the
table for me. I'll tolerate lots of bugs in
a product, but data loss is
definitely not one of them.
Best,
Donna
P.S. I also you Sprite Backup with my
current unit. I know the BN has
some kind of backup feature, at least I
think it does. It would be a
good thing if that program could allow you
to back up your data to a
storage card.
-----Original Message-----
From: "Chris
Hallsworth"<[EMAIL PROTECTED]
l.com
Sent: 8/7/07 5:01:28 AM
To: "Mary Ellen Earls"<[EMAIL PROTECTED]>,
"Braillenote
List"<[email protected]
Subject: Re: [Braillenote] Comments:
Mary, sorry to hear you've lost your
document, but consider this.
Sometimes
computers can have glitches, one of which is
to lose work that you
thought
you last saved. There are a handful of
reasons why this would be the
case,
power failure being one of them. So I guess
it's the same with the
BrailleNote; the operating system, Windows
CE/Keysoft, must have glitches
in
them that occur from time to time, and one of
these is to erase a whole
document despite you saved it. So my advice?
Consider backing up the
document to some removable device, so that
should you lose it you've
always
got a backup. Also Mary, did this issue
happen on a classic or an mPower?
As
I say I am sorry to hear what's happened, but
it's just one of these
things
and therefore I hope from this message you'll
take my advice and
hopefully
never lose a document again. I hope this
helps.
----- Original Message -----
From: "Mary Ellen Earls" <[EMAIL PROTECTED]
To: "Braillenote List"
<[email protected]
Sent: Tuesday, August 07, 2007 3:39 AM
Subject: [Braillenote] Comments:
Well let me first say that I hope somewhere
along the line Humanware
will
start addressing the issue of these machines
loosing huge amounts of
material. I am even talking about material
which has specifically been
saved and the machine just kicks it out.
The strange thing is that the
document is still there but absolutely no
text is there. It is like
someone went in went to the top of the
document and on a bt pressed
space
d and space dots 1 4 and the whole document
disappeared To me that is
more
important than anything because I lost 28
pages today never to recover
them again. I even tried the save and
recover feature to no avail.
This has been a problem with the Braille
Note since I have had one in
2002.
And I am extremely surprised this has not
come up more often but it has
not.
Secondly as far as batteries are concerned,
if some of you will
remember
Fs came out in about 2003 or very early 2004
with a pacmate Braille &
Speak which had a user replacible battery.
Ok they went back and did a
total makeover of the machine which came out
in the fall of 2004 and
guess
what? The battery was not user replacible.
Why? Because there had been
numerous problems with the earlier model of
the pacmate Bns because of
that user replacible batteries.
I have no doubt technology has come a long
way since then and I too
would
love to change my battery out but we have to
realize hw can only pack
so
much in an upgrade at any given time and
they have only so many people
in
development.
In a perfect world there would be that one
perfect machine with
everything
for everyone but alas, this is 2007 the
world is not a perfect world
and
now you have myriads of machines out there
to choose from, so you do
not
like the features of one machine, go to its
competitor and perhaps you
will find what you want from them.
Mary Ellen Earls
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