On Friday, September 09, 2011 12:54:51 AM Paras pradhan wrote: > Hi, > > I have a host which is connected to SAN via single Fibre channel HBA > (qlogic). I have several LUNS assigned to this (sdc, sdd). I added > another single port HBA to this host. I can now see two world wide > names. > > Now the confusion is which world wide name does sdc and sdd is/was using. > > scsi_id -g -u -s /block/sdc only gives wwid but I need the wwn for sdc and > sdd. I'm not sure I understand what you're looking for but info on the local fc port through which a device is seen can be found in: /sys/class/fc_host/hostX/ where X is the scsi host number (which can be seen in lsscsi output for example. If you want info on a remote port have a look in: /sys/class/fc_remote_ports/rport-XXXXXX/ Mapping scsi dev to rport-XXXXXX can be done via: /sys/class/fc_transport/targetSCSI-ID/port_name (or you could just build lsscsi >=0.19 and use the -t option). /Peter > Thanks > Paras.
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