Messages in this thread | | | Date | Sat, 15 Jun 2002 21:49:50 +0200 | From | Sancho Dauskardt <> | Subject | Re: /proc/scsi/map |
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>Life would be easier if the scsi subsystem would just report which SCSI >device (uniquely identified by the controller,bus,target,unit tuple) belongs >to which high-level device. The information is available in the kernel. > >Attached patch does this: >garloff@pckurt:/raid5/Kernel/src $ cat /proc/scsi/map ># C,B,T,U Type onl sg_nm sg_dev nm dev(hex) >0,0,00,00 0x05 1 sg0 c:15:00 sr0 b:0b:00 [...]
Great, this was really missing badly.
But how about adding another column: GUID. Most usb-storage and (all?) FireWire devices have such a unique identitiy. In contrast to native SCSI devices, these emulated SCSI devices on hot-plugging busses will change their LUNs/IDs. Therefor the GUID is really a must to be able to create stable names (laptop suspend, etc.).
Both usb-storage and iee1394-sbp2 know the GUID. It only needs to be communicated..
I'd guess that FibreChannel has similar problems ?
- sda
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