[Coco] CF and SD life expectancy

[Marc Charbonneau]

> Important lesson:  Hardware RAID is terrific when it works.  When the
> controller dies, however, your data is held hostage.  With Linux software
> RAID, all you need is another machine with multiple ports.
That's the reason I dropped hardware RAID and only use Linux software RAID now.

And mdadm can email you when there is a failure in your array.

And if you're wondering about performance, I use it with Asterisk and
manage to record conference calls without dropping anything, even on
an early P4.