[Asterisk-Users] Asterisk 1.0.2, Zaptel 1.0.2, Linux 2.6.9 on a PCEngines WRAP\Soekris net4801 in Compact Flash

Kristian Kielhofner kris at krisk.org
Tue Nov 2 14:43:50 MST 2004


Goran Obradovic wrote:

> I had huge production problems with CF cards just a month ago. I used to
> live in Canada and still have some business there - electronic voting
> equipment. So, we have optical voting devices with 256, 512, and 1GB CF
> cards for election definitions and voting records. Last month on Alberta
> elections we had 5 Kingston 256MB cards failing during the elections. That
> was a nightmare. It is interesting that 512 and 1GB cards were ok even with
> more writes. In any case, if you do something like this first test some
> cards for long period of time. Make some script that will constantly write
> and read the card and see when they fail. 
> Goran


Goran,

	The filesytem on the CF is mounted read-only (ext2).  No writes other 
than the initial flashing (hopefully).  That is why I built in 
res_config_odbc.  It also makes extensive use of ramfs for temp. 
filesystems.  Plus, if you had a 2.5" hd connected, you could use that 
for writes or a backup.  Oh yeh, the Soekris net4801 also has a USB port 
for a hard drive, etc...

	But thanks, I was under the impression that CF cards are okay as long 
as you don't write to them too often.  I will be testing them more now!

--
Kristian Kielhofner



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