OO Database question with FLASH drive

Brad Fuller brad at sonaural.com
Tue Nov 14 23:10:33 UTC 2006

Jon Hylands wrote:
> Hi everyone,
> I'm in the process of starting the next version of my autonomous
> controller, which is going to be much more like a brain than anything I've
> done before. I want to use an OO database to store persistent "memory" type
> data, but the first version of this brain is going to run on a gumstix.
> The gumstix uses a MMC FLASH card as the file system (under linux), so
> there are issues with writing data to the drive many times (FLASH has write
> limits). I haven't looked too closely at any of the OO databases that are
> available for Squeak, but I need one that doesn't write to the file system
> unless I explicitly tell it to commit a transaction.
> This may end up being a non-issue, but I'd like to hear from the developers
> or peope in the know if I need to be concerned.
Are you going to write more than a million times? Isn't that the current
known limitation regarding writing?
BTW, are you using a special Linux that can remap areas of the FLASH
that have been written too much? Is there such a beast?


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