Re: Mapping /dev/*st0* to fixed names using scsi_id

[John Huttley <John@mib-infotech.co.nz>]

Hi,
I had similar issues with my collection of scsi tape drives, not all of 
which may be powered up.
 the --page=0x80 does the trick.

my kernel is compiled with the SG version4 block device option enabled.


this is my 60-persistent-storage-tape.rules, hope it helps


ACTION!="add|change", GOTO="persistent_storage_tape_end"

# type 8 devices are "Medium Changers"
KERNEL="sg[0-9]*", SUBSYSTEMS="scsi", ATTRS{type}="8", 
IMPORT{program}="scsi_id --sg-version=3 --page=0x80 --export 
--whitelisted -d $tempnode", 
SYMLINK+="tape/by-id/$env{ID_VENDOR}-$env{ID_MODEL}-$env{ID_SERIAL_SHORT}"

SUBSYSTEM!="scsi_tape", GOTO="persistent_storage_tape_end"

KERNEL="st*[0-9]|nst*[0-9]", ATTRS{ieee1394_id}="?*", 
ENV{ID_SERIAL}="$attr{ieee1394_id}", ENV{ID_BUS}="ieee1394"
KERNEL="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", SUBSYSTEMS="usb", 
IMPORT{program}="usb_id --export %p"

KERNEL="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", SUBSYSTEMS="scsi", 
KERNELS="[0-9]*:*[0-9]", ENV{BSG_DEV}="$root/bsg/$id"
KERNEL="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", 
WAIT_FOR="$env{BSG_DEV}", IMPORT="scsi_id --page=0x80 --whitelisted 
--export --device=$env{BSG_DEV}", ENV{ID_BUS}="scsi"

KERNEL="st*[0-9]",  ENV{ID_SERIAL}="?*", 
SYMLINK+="tape/by-id/$env{ID_VENDOR}-$env{ID_MODEL}-$env{ID_SERIAL_SHORT}"
KERNEL="nst*[0-9]", ENV{ID_SERIAL}="?*", 
SYMLINK+="tape/by-id/$env{ID_VENDOR}-$env{ID_MODEL}-$env{ID_SERIAL_SHORT}-nst"

# by-path (shortest physical path)
KERNEL="st*[0-9]", IMPORT{program}="path_id %p"
KERNEL="st*[0-9]", ENV{ID_PATH}="?*", 
SYMLINK+="tape/by-path/$env{ID_PATH}"

LABEL="persistent_storage_tape_end"