Chapter 5. Managing Multipath I/O for Devices / 5.10. Configuring Multipath I/O for the Root Device
Prev5.9. Tuning the Failover for Specific Host Bus Adapters5.11. Configuring Multipath I/O for an Existing Software RAIDNext

5.10. Configuring Multipath I/O for the Root Device

In the initial release, the root partition on multipath is supported only if the /boot partition is on a separate, non-multipathed partition. Otherwise, no boot loader is written.

[Note]Note

This issue is resolved in updates since the initial release.

To enable multipathing on the existing root device:

  1. Install Linux with only a single path active, preferably one where the by-id symlinks are listed in the partitioner.

  2. Mount the devices using the /dev/disk/by-id path used during the install.

  3. After installation, add dm-multipath to /etc/sysconfig/kernel:INITRD_MODULES.

  4. Re-run /sbin/mkinitrd to update initrd image.

  5. Reboot the server.

To disable multipathing on the root device:

SUSE® Linux Enterprise Server Storage Administration Guide 10
Prev5.9. Tuning the Failover for Specific Host Bus AdaptersHome5.11. Configuring Multipath I/O for an Existing Software RAIDNext