On Mon, Feb 1, 2010 at 4:10 PM, David Rees <drees76@xxxxxxxxx> wrote: > I suspect that if you used write-behind with a write-intent bitmap > stored only on the SSD, you'd get some of that performance back, but > potentially lose a bit of reliability. You'd only lose data here if the SSD died and the machine crashed *at the same time*, right? Doesn't seem like a big deal to me -- if the events are even a minute or two apart, you'd be fine (right?). By contrast, if I understand correctly, you can get data corruption in RAID5 if you lose a disk and then the machine crashes *any* time before a new disk is resynced. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
