> On Sat, 2009-07-04 at 18:27 -0400, Win Htin wrote: >> Hi Tom, >> >> Thanks a lot for your response. I also have Blade Servers running >> RHEL5.2 booting off SAN. >> >> My follow up question is, can I re-configure/modify an already >> installed server? I installed the dynamic multipath RPM as per >> RedHat's online instructions but when I run mpath -v2, nothing pops >> up. If I run "fdisk -l" I can see the same single disk as /dev/sda, >> sdb, sdc and sdd, as expected. > > I suspect this will be a little more difficult. Multipath generally > won't build a mpath device if one of the devices were already in > use/mounted. I suspect you could do something by booting from the CD > into rescue mode with the same "mpath" command line option you would use > during install, but I've never done it. I also wonder if you could > doing it by running an "Upgrade" but using the "mpath" command during > the upgrade but once again, it's not something I've ever tried. > > BTW, did you edit the multipath.conf file and remove the default > blacklist (which I think still blacklists all devices by default)? > > If you know about multipath it wouldn't be that difficult to hack up > your initrd the same way that mkinitrd does, that's pretty much what I > used to do with RHEL4 with a custom script, but I'm not sure how > familiar you are with the specific details of how multipath functions. > > If someone else knows of an easy way to do it that would be great. > > Later, > Tom
Hi Tom, Thanks for the answer. Yes, I have edited the multipath.conf file. Since it is my test server, I'll just create a new partition, assign it to the server and re-install the OS from scratch. Again thanks a lot for your input. Cheers, Win _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
