Filesystem / DB check and repair

[oisact]

So there are at least 3 levels of structures in which data like texts and email is stored under Android:

1. SD Card FAT32 filesystem
2. data.img volume and filesystem
3. Actual database residing in files in data.img

What are the methods of verifying the integrity of those filesytems and databases? #1 is easy - that can be done by popping the SD card into any PC, and is automatically done every time Android boots. What about 2 and 3?

The reason I ask is I've been running FRX05 for many weeks now with few problems, but now the last few days I've been getting a lot of SODs, which I never had before at all. They seem to occur when texts are coming in, which leads me to believe something is corrupt in the user data where the database is stored. So I'd like to verify everything at each layer to see if it can be repaired.

Thanks!