I currently am doing nightly backups of my server onto two USB hard drives that are rotated weekly. A nightly backup only takes 30-45 minutes on average, but the USB drives are left plugged in and running for a full week. The USB enclosures are usually quiet warm during the entire time they are plugged in and I am concerned that this is causing a high rate of failure. I have lost 4 hard drives in 2 years while they are still under warranty, at least. It appears that USB does not offer any mechanisms to power down the drives when they are not in use. I only have the drives mounted during the 30-45 minutes they are running, but this hasn't helped. I am curious on what ideas you might have for external hard drives that only need to run for a short time at night. Either a cooler enclosure or alternatives like Firewire or E-SATA if they can power down drives. -- Loren M. Lang [EMAIL PROTECTED] http://www.alzatex.com/
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