Francois Barre wrote: > 2006/7/1, Ákos Maróy <darkeye@xxxxxxxxx>: >> Neil Brown wrote: >> > Try adding '--force' to the -A line. >> > That tells mdadm to try really hard to assemble the array. >> >> thanks, this seems to have solved the issue... >> >> >> Akos >> >> > > Well, Neil, I'm wondering, > It seemed to me that Akos' description of the problem was that > re-adding the drive (with mdadm not complaining about anything) would > trigger a resync that would not even start. > But as your '--force' does the trick, it implies that the resync was > not really triggered after all without it... Or did I miss a bit of > log Akos provided that did say so ? > Could there be a place here for an error message ? > > More generally, could it be usefull to build up a recovery howto, > based on the experiences on this list (I guess 90% of the posts a > related to recoveries) ? > Not in terms of a standard disk loss, but in terms of a power failure > or a major disk problem. You know, re-creating the array, rolling the > dices, and *tada !* your data is back again... I could not find a bit > of doc about this. > Francois, I have started to put a wiki in place here: http://linux-raid.osdl.org/ My reasoning was *exactly* that - there is reference information for md but sometimes the incantations need a little explanation and often the diagnostics are not obvious... I've been subscribed to linux-raid since the middle of last year and I've been going through old messages looking for nuggets to base some docs around. I haven't had a huge amount of time recently so I've just scribbled on it for now - I wanted to present something a little more polished to the community - but since you're asking... So don't consider this an official announcement of a useable work yet - more a 'Please contact me if you would like to contribute' (just so I can keep track of interested parties) and we can build something up... David - 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