Fabrice,

> > <SL> Have you disabled all OS write caching features for the HDDs?
> >
> > Sean
>
> No. Should we?

Yes, always!

The only write caching which should be enabled is at the hardware level,
when you have a RAID controller with a battery backup module.

This type of caching is hidden from the OS.

> I should mention here that we do not only write datas into the
> database, but perhaps 99% of the data which are written to the disk
> are video data. The database mainly contains configuration
> informations, logs, and references to the video files stored
> directly on the filesystem (ext3).

If that is the case, I don't understand how you can be experiencing
database corruption so frequently.


Sean