On Fri, 23 Jun 2006, Molle Bestefich wrote: >I'd watch out regarding the Western Digital disks, apparently they >have a bad habit of turning themselves off when used in RAID mode, for >some reason: >http://thread.gmane.org/gmane.linux.kernel.device-mapper.devel/1980/ Where "for some reason" == HEAT. I've seen Maxtor, Seagate, AND Western Digital drives all shutdown when they get too hot -- so hot you cannot touch them. I know this all too well because Dell is stupid or lazy to design their cases with proper ventilation over the drives; one drive simply gets hot, two drives get hot enough to discolor their plastic drive sleds. Unless you're talking about little laptop drives, hard drives need active cooling. A few CFM is usually enough. A LOT of people underestimate the cooling needs of their drives. (and sadly that includes far too many manufacturers of IDE/SATA drive cages.) --Ricky - 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