2010/3/30 nate centos@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