Just to chime in here, I've got a five slot USB3 external enclosure running on my Debian Jessie x86_64 main file/backup server for home. The data disks arent on here, they're mirrored on SATA controllers. But I do use the USB3 disks for storing backups taken with Burp. So far, it's been really reliable for me. But I never touch the cable between the systems, and neither system moves or gets moved around. So you *might* have better luck with USB3 than the older, slower USB2 external drives and chassis. John -- 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