Tom Sanders wrote: >Is there a way to map entries in /proc/scsi/scsi with >their corresponding mapping with /dev/sda, /dev/sdb >etc ? > >During system boot, entries in /proce/scsi/scsi and >/dev are initialized in serial order, and there is a >one to one mapping. However, this mapping is NOT >guaranteed if devices are selectively removed and >added using "scsi remove-single-device" and "scsi >add-single-device" commands. > >Any idea of how to work around it ? > If you go to the scsi-generic page, there is a page about sg-utils. On it are several programs for maping scsi devices to consistent names in /dev based on HBA and model info. Look here <http://www.torque.net/sg/u_index.html#others> at scsidev, mapscsi, and scsimap. Filesystem labels help here too. There is alao a unique filed for each filesystem that can be used, called UUID. As for connection between /proc/scsi/scsi and /dev/sdx. /proc/scsi/scsi is in order by channel then ID then lun. only hard disck are assigned /dev/sdx names. 'scsi_info /dev/<node>' will give you most of the info in /proc for a device. Mu USB CDRW shows host,ID,LUB, model, and FW_rev. If you add/remove devices while the system is running, the mapping doesn't change. So you save the initial mapping. when you remove a device, you skip it's sdx entry. when you add a device, you append it to the sdx list. But you really shouldn't need to map the /proc and /dev entries normaly. -Thomas _______________________________________________ Redhat-devel-list mailing list Redhat-devel-list@redhat.com https://listman.redhat.com/mailman/listinfo/redhat-devel-list
