4 - 8 MC45 Integrator Guide
SampleCpy.cpy
\Application\example.txt > \Windows\example.txt
The following example uses XML provisioning to perform the same task:
SampleCpy.xml
<wap-provisioningdoc>
<characteristic type= “FileOperation”>
<characteristic type= “\Windows” translation= “filesystem”>
<characteristic type= “MakeDir”/>
<characteristic type= “example.txt” translation= “fileystem”>
<characteristic type= “Copy”>
<parm name= “Source” value= “\Application\example.txt” translation= “filesystem”/>
</characteristic>
</characteristic>
</characteristic>
</characteristic>
</wap-provisioningdoc>
Storage
Embedded Handheld 6.5.3 contains three types of file storage:
•
Random Access Memory (RAM)
•
Persistent Storage
•
Application folder.
Random Access Memory
Executing programs use RAM to store data. Data stored in RAM is lost upon a warm boot. RAM also included
a volatile file storage area called Cache Disk.
Volatile File Storage (Cache Disk)
Windows Embedded Handheld 6.5.3 memory architecture uses persistent storage for all files, registry settings,
and database objects to ensure data is retained even after a power failure. Persistent storage is implemented
using Flash memory technology which is generally slower than volatile RAM memory. In certain situations the
speed of the operation is more important than the integrity of the data. For these situations, Motorola has
provided a small volatile File Storage volume, accessed as the Cache Disk folder. Disk operations to the Cache
Disk folder are much faster than to any of the persistent storage volumes, but data is lost across warm boots
and power interruptions. Note that a backup battery powers RAM memory, including the Cache Disk, when you
remove the main battery for a short period of time.
The MC45 uses the Cache Disk for temporary data that can be restored from other sources, for example, for
temporarily “caching” HTML web pages by a browser or generating formatted files to send to a printer. Both
situations benefit from the increased speed of the cache disk, but you can restore the data if needed.
DO NOT use the Cache Disk as a method to improve application performance. Analyze applications that
perform slower in persistent storage to optimize disk access. Common areas for optimization include
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