drive errors

I'm starting to get errors from one of my SCSI drives (see below) I know about badblocks but are there any other programs for testing and fixing the drive? kernel: scsi0: ERROR on channel 0, id 5, lun 0, CDB: 0x28 00 00 03 af 90 00 00 3f 00 kernel: Info fld=0x3af9a, Current sd0b:01: sns = f0 3 kernel: ASC= 2 ASCQ= 0 kernel: Raw sense data:0xf0 0x00 0x03 0x00 0x03 0xaf 0x9a 0x0a 0x00 0x00 0x00 0x00 0x02 0x00 0x00 0x00 0x00 0x00 kernel: I/O error: dev 0b:01, sector 966248 kernel: scsi0:0:5:0: Attempting to queue an ABORT message kernel: scsi0:0:5:0: Command not found kernel: aic7xxx_abort returns 8194