----- Original Message ----- From: "Win Htin" <[email protected]> To: [email protected] Sent: Tuesday, November 10, 2009 4:01:43 PM Subject: [rhelv5-list] multipath and rdac driver
My questions are; 1. Do I need to install the rdac package from LSI website or the multipath RPM good enough to proceed with assigning more partitions and configure DMpath? 2. Can I enable both paths from each HBA for a total of FOUR? (two active/two passive). Searching on the web, I found articles saying it is not supported natively. 1. I do believe the two are mutually exclusive. Just stick with the contents of RHEL, assuming you're running 5.3 or greater (5.2 and older lacked the rdac module). 2. I'm currently running only the one path, but VMware ESX 3.5 seems to require both paths to be connected (this is explained in their best practices manual, and there is no way to set a preferred path). I've connected it this way on my test SAN (a DS4100), and it seems to work, but I haven't extensively tested it yet. If you're booting from the SAN, you will need to add a line to /etc/sysconfig/mkinitrd/modules so that the rdac module gets included in the initrd. I don't have access to my config files at the moment, so I'll try to remember to follow up with that (and the contents of *my* multipath.conf) tomorrow. It's been a looooooooong road, but it's nice to see the bladecenter, DS4000's, and RHEL finally playing nice together without a lot of manual labor after every kernel bump! -- Dana Canfield Sr. Systems Administrator University of Indianapolis _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
