>>>> "ext3 works on flash and MD RAID5, as long as you do not have >>>> powerfail" seems to be the accurate statement, and if you don't need >>>> to protect against powerfails, you can just use ext2. >>> >>> Strange how your personal preference is totally out of sync with the >>> entire enterprise class user base. >> >> Perhaps noone told them MD RAID5 is dangerous? You see, that's exactly >> what I'm trying to document here. > > a MD raid array that's degraded to the point where there is no redundancy > is dangerous, but I don't think that any of the enterprise users would be > surprised. > > I think they will be surprised that it's possible that a prior failed > write that hasn't been scrubbed can cause data loss when the array later > degrades. Cool, so Ted's "raid5 has highly undesirable properties" is actually pretty accurate. Some raid person should write more detailed README, I'd say... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
