I have an IBM Storewize v3700 External Storage connected to a PureFlex chassis with 4 nodes x240 all running Red Hat Linux 6.4 Enterprise Edition. two of the nodes are going to be configured for High Availability. i have created some volumes which i mapped to my servers , when i open the disk utilities in Linux i see four copies of the same volume which i think is ok since i have two LUNs on each server coming from my storage. My problem is that i am getting the this error '' Warning : Several paths to this drive has been detected but no corresponding multipath was found.your OS may be misconfigured.'' with this error i cannot do anything to these volumes neither format them or create a partitions , when trying to do this i am getting a device busy error.
i have edited the /etc/multipath.conf file accordingly as prescribed in this document from IBM http://pic.dhe.ibm.com/infocenter/storwize/v3700_ic/index.jsp?topic=%2Fcom.ibm.storwize.v3700.641.doc%2Fsvc_dmmpsetuplinux431_3yd13v.html but nothing has changed.
does anyone have an idea on this?