I just bought a Cavalry 1TB dual-3.5" external USB HD, attached to a machine running Fedora Core 5. I partitioned and formatted it according to the directions provided by Red Hat here.

The drive mounts and I can put data on it. But these errors come up in dmesg on mounting/rebooting. Is this a bad drive, or am I messing up?

sd 2:0:0:0: SCSI error: return code = 0x08000002
sda: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sda, sector 1953546336
Buffer I/O error on device sda, logical block 1953546336
sd 2:0:0:0: SCSI error: return code = 0x08000002
sda: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sda, sector 1953546336
Buffer I/O error on device sda, logical block 1953546336
sd 2:0:0:0: SCSI error: return code = 0x08000002
sda: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sda, sector 1953546336
Buffer I/O error on device sda, logical block 1953546336
sd 2:0:0:0: SCSI error: return code = 0x08000002
sda: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sda, sector 1953546336
Buffer I/O error on device sda, logical block 1953546336
EXT3-fs error (device sda): ext3_check_descriptors: Block bitmap for group 880 not in group (block 0)!
EXT3-fs: group descriptors corrupted!
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds