CF File Corruption

[tgomez]

all,
I am currently using:
- WINXPE SP2
- Transmeta 1Ghz CPU w/via chipset
- 320Mb Ram
- 512 Simpletech Fixed CF card

The OS files and our custom application resides on a 220Mb NTFS
partition that is protected by EWF (Ram overlay).

The rest of the NTFS CF(other than EWF volume) is used for logging
diagnostic messages. Due to the fact that we must keep these messages
if power is pulled suddenly(could happen frequently) EWF is *not*
enabled on this partition.

Problem:

In two instances we have seen when trying to access the partition a
message saying something like "disk does not seem to be formated would
you like to format now".

My first thought is the files are getting corrupted by sudden power
loss and windows try's to reformat to access drive. The protected
volume has never had this problem (as all is written to RAM).

what is the best way to fix/work around this problem?

Thanks to everyone with feedback,
tgomez

 

[Slobodan Brcin \(eMVP\)]

Tony,

what is the best way to fix/work around this problem?

Huh I have never seen NTFS damaged so bad by power failure.
Have you tried to minimize NTFS internall logging/writing it might help you
a bit.

Look at NtfsDisableLastAccessUpdate
http://msdn.microsoft.com/embedded/community/community/tips/xp/ramewf/default.aspx


Regards,
Slobodan

 

[tgomez]

Slobodan,

Thanks for the input.

I have disabled NtfsDisableLastAccessUpdate via the registry. I also
noticed that I did not have the component: Background Disk
Defragmentation Disable ( I added this). I have also made sure to be
excluding (components): "System Restore Core" and "System Restore User
Interface ".

I am testing and will post results.

Tks...
Tony

 

[Guest]

I received the *bad* compact flash card.

Ran a small diag test:
I/O Error on sector 450309
I/O Error on sector 450317
I/O Error on sector 450389

this is the same CF that is reporting no file system. When I try to access
the CF i get "the disk in drive F is not formatted Do you want to format it
now?"

any test i should run, thoughts?
thanks,
Tony