I'm sorry, I don't know the megaraids that much. But the more drives you have in one group the more data has to be accessed in case of a rebuild, with increased potential for another issue while less performance is available.
Sometimes people recommend in case of an failure to move the data to a new RAID volume instead of rebuilding the volume. But that needs much more disks and slots to be available just in case. Other way to handle this I had in my email, of course creating 3 groups of 7 disks, or 2 of 9 instead of 1 group of 20 helps, too. Yes, you 'loose' some capacity but for the sake of reliability and ease of administration (of the disks). greetings Kai Dupke Senior Product Manager Server Product Line -- Sell not virtue to purchase wealth, nor liberty to purchase power. Phone: +49-(0)5102-9310828 Mail: kdu...@suse.com Mobile: +49-(0)173-5876766 WWW: www.suse.com SUSE Linux GmbH - Maxfeldstr. 5 - 90409 Nuernberg (Germany) GF:Felix Imendörffer,Jane Smithard,Graham Norton,HRB 21284 (AG Nürnberg) _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org