On Sun, 4 Feb 2018, Douglas Taylor via cctech wrote: Yes, the disks are interchangeable. I have used blue disks in a green shelf and green disks in a blue shelf. The modules come apart fairly easily and you can replace the drives or remove drives and use them as ordinary SCSI drives elsewhere - I have done that too. DEC and Compaq also sold DLTs in a StorageWorks module those can also be taken apart and the drive replaced but they are harder to get apart and you must pay attention if you hope to get it reassembled properly. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black