> i think that Ram disk with strong power supply can be a good choice.

ONLY DO THAT IF THE DATABASE IS 100% READ-ONLY!

Or if you don't care about losing any updates which have been applied.

> A soon as power faillure is detected the software stop the firebird and copy
> the entire ram disk to the RAID disk before the UPS go down.

There are other reasons for a system abending/shutting down -- think dumb user or BSOD!


Sean