Tim: > > Other things that kill drives can be: Vibrations, they should be bolted > > firmly in place, and nothing else should vibrate the chassis. Tortional > > stress - you don't want a chassis that twists or squashes a drive. jdow: > If you are in a high vibration environment the drives really should be > mounted in shock mounts if you have the option. Solidly mounting them > to the chassis simply conveys the shocks directly to the delicate > insides of the drives. Oh definitely. Though sometimes you put a drive into a situation where you never expected vibration to be an issue: I've had a fan go wonky in a box last week that had the whole chassis thrumming along with it, to the point where the drive started misbehaving. Luckily, in this case, all it did was show up a fault in a poor hard drive power plug - one of those crappy 4-pin molex plastic connectors - a loose gripping contact. But when you consider the tiny dimensions of the head skimming above the platter, continuous (and otherwise) small vibrations in the chassis can be a significant thing. -- (Currently running FC4, in case that's important to the thread) Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.