<<I'm installing a couple of QUANTUM DLT4000's on our MPE5.5 boxes but I don't know the SYSGEN device name for these. Can anyone help or point me at the right web page?>> The IODFAULT entry is IODFAULT.PUB.SYS 566: {**************** DLT **************************} 567:DLT4000 TAPE 24 8 0128 SCSI_TAPE2_DM LOGICAL_DEVICE_MANAGER 0010 & Steve