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Sun OS 4.1.4 checking tapes

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  by Bill Degnan - 10/29/2026 14:35
if you have a stable Sun system running Sun)S 4.1.4 (or thereabouts), set your system so that SCSI address 4 is your "removable" drive. Then you can swap out unknown storage devices and test them. Just be sure all are set to address 4, and don't swap anything with the Sun powered on.

1. set the address to 4
2. power everything up
3. mt -f /dev/rst0 rewind
4. tar cvfb /dev/rst0 20 /usr/etc
5. mt -f /dev/rst0 rewind
6. tar tvfb /dev/rst0 20
7. mt -f /dev/rst0 offline

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