Fibre channel and scsi naming

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Hi all,

In my program implementation on SLES 9 I was using the path
/sys/class/scsi_host/host<host_no_for fibre channel
adapter>/device/<host>:<channel>:<id>:<lun> entry to detect whether a
disk is attached through fibre channel or some other channel.

Now on SLES 10 the entry has been changed as
/sys/class/scsi_host/host<host_no_for fibre channel
adapter>/device/rport<some
numbers>/target<host:channel:id>/<host>:<channel>:<id>:<lun>

Can anyone tell me what are the new rport entries and how and who
creates them. Is it possible to get the rport entries for scsi disk
through scsi ioctls?

I could also see an entry as
/sys/class/fc_transport/target<host>:<channel>:<id>/device/<host>:<channel>:<id>:<lun>
on SLES 10. Can I use these entries to check whether a device is
registered through fibre channel adapter. Also which program populates
the fc_transport entries?


TIA
Mohit
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