> for right now ill probably use mdadm for the boxes we _need_ to be > supported, and ill start playing with dm on my debian ones. Just as a > side, is there a dm patch for 2.4.x that i could try? > the multipath tools rely heavily on sysfs and 2.6 hotplug. There is a kernel patch for 2.4 on ftp://sources.redhat.com/dm/ but you won't get far with that. > is unloading/loading the module really the only way to rescan the bus > with the qlogic hbas? i hate having to take an outage to add a vdisk. > no, you got the following commands at disposal : echo "scsi add-single-device 0 1 2 3">/proc/scsi/scsi echo "scsi remove-single-device 0 1 2 3">/proc/scsi/scsi where 0 = host adapter # 1 = bus # 2 = target # 3 = lun # alternalively, you can google for a wrapper script written by Kurt Garloff (I guess) named scsi-rescan.sh > could the RH kernel be built without REPORT_LUN? would that do it? > > whats your take on using the RH, HP, or qlogic versions of the hba > driver? is one better than the others? how does the failover work? is > there a doc somewhere with the module params? > That is all a question of support. For myself, I only use 2.6 for dev, which comes with the Qlogic maintained driver. <snip [as]symmetric laius> > ill remember that next time we order equipment... :) > not the same price either :)
