While running rsync backups to a USB external disk I noticed an issue where the backup job would stop and /var/log/messages would spit out errors like: Buffer I/O error on device sdb1, logical block 102630553 scsi 3:0:0:0: rejecting I/O to dead device sd 6:0:0:0: Device not ready: <6>: Current: sense key: Not Ready Add. Sense: [...]
