J
Janiek Buysrogge
Hello,
This question is more hardware-related, but as this is a common issue
I thought I'd post it here...
We are developing a homecare application on XPe, and are currently
using a SanDisk 4GB CF-card. It is partitioned into 2 parts, the first
one (500MB) contains the EWF-protected operating system, the second
is for user data storage (couple of GB's).
System upgrades (on the EWF-protected partition) are done only if
there are major changes to the operating system (eg. new Service Pack,
new .NET) and are done by technicians.
However once in a while, key certificates, plugins and misc. software
are downloaded onto the user data partition.System logging is done on
the partition too, and the user is able to store any number of files
on it (and delete them). Much like a My Documents dir. My concern is
that the CF-card will degrade quickly, however it is hard to say how
long 100.000 write-cycles exactly is.
Are there any alternative storage types I can use for the user data ?
I looked into MicroDrives, but I didn't find facts about endurance or
lifetime, and of course they have moving parts, thus more vulnerable.
Then I looked at non-volatile RAM such as NVRAM, FRAM and
PRAM, but these are still under heavy development (max sizes of 16MB)
and the market is still heavily dominated by Flash memory.
Any suggestions or redirections would be helpful,
Thanks,
Janiek Buysrogge
Televic NV
This question is more hardware-related, but as this is a common issue
I thought I'd post it here...
We are developing a homecare application on XPe, and are currently
using a SanDisk 4GB CF-card. It is partitioned into 2 parts, the first
one (500MB) contains the EWF-protected operating system, the second
is for user data storage (couple of GB's).
System upgrades (on the EWF-protected partition) are done only if
there are major changes to the operating system (eg. new Service Pack,
new .NET) and are done by technicians.
However once in a while, key certificates, plugins and misc. software
are downloaded onto the user data partition.System logging is done on
the partition too, and the user is able to store any number of files
on it (and delete them). Much like a My Documents dir. My concern is
that the CF-card will degrade quickly, however it is hard to say how
long 100.000 write-cycles exactly is.
Are there any alternative storage types I can use for the user data ?
I looked into MicroDrives, but I didn't find facts about endurance or
lifetime, and of course they have moving parts, thus more vulnerable.
Then I looked at non-volatile RAM such as NVRAM, FRAM and
PRAM, but these are still under heavy development (max sizes of 16MB)
and the market is still heavily dominated by Flash memory.
Any suggestions or redirections would be helpful,
Thanks,
Janiek Buysrogge
Televic NV