Kyle Moffett <[EMAIL PROTECTED]> writes: > IMHO the best alternative for a situation like that is a storage > controller with a battery-backed cache and a hunk of flash NVRAM for > when the power shuts off (just in case you run out of battery), as > well as a separate 1GB battery-backed PCI ramdisk for an external > journal device (likewise equipped with flash NVRAM). It doesn't take > much power at all to write a gig of stuff to a small flash chip > (Think about your digital camera which runs off a couple AA's), so > with a fair-sized on-board battery pack you could easily transfer its > data to NVRAM and still have power left to back up data in RAM for 12 > hours or so. That way bootup is fast (no reading 1GB of data from > NVRAM) but there's no risk of data loss.
Not sure - reading flash is fast, but writing is quite slow. A digital camera can consume a set of 2 or 4 2500 mAh AA cells for a fraction of 1 GB (of course, only a part of power goes to flash). -- Krzysztof Halasa
