Using Device Mapper Multipath with DxEnterprise on Linux

Applies to…

  • DxEnterprise v20.0.232.0 or later for Linux


Steps to install DM-Multipath on Linux.


This article describes how to install Device Mapper Multipath on Linux to allow DxEnterprise to manage disks being presented down multiple paths. Having multiple paths defined for a disk adds redundancy and path failover in the case of a path, switch or adaptor failure. The below steps assume that the storage devices and paths have already been successfully presented to the systems.

  1. Install the multipath package:
    • Ubuntu:
      sudo apt-get install multipath-tools
    • RedHat/CentOS:
      sudo yum install device-mapper-multipath
  2. Create the /etc/multipath.conf file:
    sudo /sbin/mpathconf --enable
  3. Start the multipathd service:
    sudo systemctl start multipathd
  4. Run the multipath command to build the device list:
    sudo multipath
  5. If DxEnterprise is not yet installed, then install DxEnterprise at this time. For more information, see the DH2i installation guides.