On Oct 18, 2019 20:22, William Muriithi <will...@perasotech.com> wrote
[1:0:2:0] tape IBM ULTRIUM-HH6 E4J1 /dev/st0 /dev/sg2 [1:0:2:1] mediumx QUANTUM UHDL 0091 /dev/sch0 /dev/sg3 The /dev/sg2 and /dev/sg3 only show up with the tape library attached. If I de-attach the tape, but leave the HBA card on the system, the device disappears. That is expected behavior. I have also attempted this: lspci -nn The problem with this is even a HBA card that I know will not work when I attach the tape library is detected by the operating system and will be listed on lspci result. So I can't ask someone remote to use that to separate supported to unsupported. So what else can one do the achieve this objective? PERC are usually hardware RAID cards. They may not have tape support. You can also use dmesg to see what your kernel is seeing and mapping.
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