Red Hat Bugzilla – Bug 801356
[RHEL]RHEV-Management Agents-Multipath error
Last modified: 2012-08-23 17:19:17 EDT
Created attachment 568591 [details]
Description of problem:
I install a new RHEL 6.2 server with default configuration. Than i register that on redhat and put the chanel: rhel-x86_64-rhev-mgmt-agent-6
Than i update this with yum update.
After reboot i make follow of the rhev install manual:
"8.1. Adding Red Hat Enterprise Linux Hosts"
After that i add this to rhevm in the gui. Rhevm install this hosts and after reboot i become at login screen a lot of follow errors:
device-mapper: table: 253:0: multipath: error getting device
My server is a Dell R415
That same that i have wirite under Description.
Steps to Reproduce:
1.Install and update RHEL 6.2
2.Add this to rhevm gui
Created attachment 568592 [details]
Created attachment 568593 [details]
Created attachment 568594 [details]
Created attachment 568595 [details]
I'm not sure why the device is trying to load so many times, but it looks like it's failing because the device is in-use. The device that is already in use is /dev/sda. Is this devices supposed to be multipathed. I assume that it is the root device. If so, you will need to remake the initramfs, so that multipath can
access this device before it gets mounted. However, it looks like there is only one path. In this case, I assume that you don't want this device multipathed. In that case, you need to add
this will keep multipath from trying to use this device.
Is this still an issue for you?
No, i have fixed this with a manual blacklist configuration.
But this can be a problem for other people, that install this automaticaly over the rhev-m gui.
I change the status to low.
So, multipath seems to be acting as designed. If have a multipath configuration file, and you do not blacklist a device, it is assumed to be whitelisted. This bug should either be closed NOTABUG, or it should get moved to the rhev-m gui, which should handle dealing with the configuration file.