2010/3/30 nate <centos at linuxpowered.net>: > Lorenzo Quatrini wrote: >> This is what I'm doing right now; but I was searching for a way of >> doing it earlier on startup. >> I'm playing with a non partitionable DS4300 FC, and I would like to >> avoid LUN contention. > > Since it appears to be a SAN of sorts, another option may be to > use the blacklist setting for dm-multipath, or if it's a fiber > attached system you may be able to mask it at the controller > itself using the vendor tools for the controller. > I wish I could understand better IBM's tools... but as far I know I miss a (costly) option to be able to configure the whole thing from the controller. This is what I'm doing right now: using /proc/scsi/scsi to disable some luns and multipath to control which host sees what partition, but I was looking for a way to disable earlier during the boot the luns. Thank you again for your help Ciao Lorenzo