On Thu, Jan 28, 2010 at 2:41 PM, unix syzadmin <unixsyzadmin@xxxxxxxxx> wrote: > Hi, > > We are running RHEL AS 4 and are going to be assigned EMC SAN storage. > > I am asked to provide the WWN numbers to the storage folks in order to > assign the LUNs. > > How can I determine the number of FC HBA cards on the linux and their WWN > numbers. > > Please suggest, > > Thanks. Without answering your question directly, I highly recommend you obtain all of the necessary client-side software and appropriate documentation from your SAN team if you plan on implementing this correctly. Will this host have multiple paths presented to it? Your vendor documentation will clearly spell out the requirements for properly connecting to the san, including how to easily answer your own question. To answer your question more directly, without querying any san vendor or HBA vendor utility, you may be able to read out the port information through /proc/scsi/[driver]/ hierarchy. For example on one of my systems: # cat /proc/scsi/qla2xxx/1 <snip> SCSI Device Information: scsi-qla0-adapter-node=200000xxxxxxxxxx; scsi-qla0-adapter-port=210000xxxxxxxxx; <snip> -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list