On Sat, 17 Jun 2017, Rob Jarratt via cctalk wrote:

I have cloned drives that way for VMS systems. Backup/image is the tool for that.

So have I, but it doesn't work for tapes. Unless someone knows a trick that I have not discovered?

No, backup won't do what you want. Backup is designed to save and restore Files-11 on disk file systems and requires access to index.sys and bitmap.sys which translates to mean that it is not doing a sequential block by block copy like "dd" does. A common use for backup/image was to backup a disk and then restore it back to the disk to eliminate fragmentation, that would not be possible with a raw block by block copy.

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