John> I had similar issues with my collection of scsi tape drives, not
John> all of which may be powered up. the --page=0x80 does the trick.
Interesting. I'll try this out today if I get a chance.
John> my kernel is compiled with the SG version4 block device option enabled.
I think mine is too.
John> this is my 60-persistent-storage-tape.rules, hope it helps
John> ACTION!="add|change", GOTO="persistent_storage_tape_end"
John> # type 8 devices are "Medium Changers"
John> KERNEL=="sg[0-9]*", SUBSYSTEMS=="scsi", ATTRS{type}=="8",
John> IMPORT{program}="scsi_id --sg-version=3 --page=0x80 --export
John> --whitelisted -d $tempnode",
John> SYMLINK+="tape/by-id/$env{ID_VENDOR}-$env{ID_MODEL}-$env{ID_SERIAL_SHORT}"
John> SUBSYSTEM!="scsi_tape", GOTO="persistent_storage_tape_end"
John> KERNEL=="st*[0-9]|nst*[0-9]", ATTRS{ieee1394_id}=="?*",
John> ENV{ID_SERIAL}="$attr{ieee1394_id}", ENV{ID_BUS}="ieee1394"
John> KERNEL=="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", SUBSYSTEMS=="usb",
John> IMPORT{program}="usb_id --export %p"
John> KERNEL=="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", SUBSYSTEMS=="scsi",
John> KERNELS=="[0-9]*:*[0-9]", ENV{BSG_DEV}="$root/bsg/$id"
John> KERNEL=="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*",
John> WAIT_FOR="$env{BSG_DEV}", IMPORT="scsi_id --page=0x80 --whitelisted
John> --export --device=$env{BSG_DEV}", ENV{ID_BUS}="scsi"
John> KERNEL=="st*[0-9]", ENV{ID_SERIAL}=="?*",
John> SYMLINK+="tape/by-id/$env{ID_VENDOR}-$env{ID_MODEL}-$env{ID_SERIAL_SHORT}"
John> KERNEL=="nst*[0-9]", ENV{ID_SERIAL}=="?*",
John> SYMLINK+="tape/by-id/$env{ID_VENDOR}-$env{ID_MODEL}-$env{ID_SERIAL_SHORT}-nst"
John> # by-path (shortest physical path)
John> KERNEL=="st*[0-9]", IMPORT{program}="path_id %p"
John> KERNEL=="st*[0-9]", ENV{ID_PATH}=="?*",
John> SYMLINK+="tape/by-path/$env{ID_PATH}"
John> LABEL="persistent_storage_tape_end"
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