Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Nova barclamp lists all the paths to the same LUN even though MultiPath at the OS level is configured #1628

Open
hrushig opened this issue Sep 15, 2012 · 0 comments

Comments

@hrushig
Copy link

hrushig commented Sep 15, 2012

Baremetal hardware has been configured to have a dedicated LUN from HP EVA 8400 using multipath. When applying Nova proposal, just below the volume settings, I see 8 disks sdb to sdi with identical sector size. There are 8 multiple paths to this LUN. Before applying Nova proposal, following steps were done to support multiple path and setup a physical raw device to be configured as Nova-volume:

  1. After OS installation, install multipath-tools
    apt-get install multipath-tools
  2. Run the following to get WWID for the dedicated LUN
    /lib/udev/scsi_id -g -u -d /dev/sdb
  3. Copy the template multipath.conf file to /etc folder:
    cp -ip /usr/share/doc/multipath-tools/examples/multipath.conf.synthetic /etc/multipath.conf
  4. Edit the /etc/multipath.conf file to replace the following:

defaults {
user_friendly_names yes

multipaths {
multipath (
wwid <derived from step 4.>
alias

  1. Reboot the machine
  2. Validate if shows up in the folder /dev/mapper

Please point if I missed any specific step.

Regards~hrushi

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Development

No branches or pull requests

1 participant