Verifying that RHEL 6 DDMP devices are ready for transition using CLI

Contributors netapp-ivanad ntap-bmegan Download PDF of this page

Before you transition your Red Hat Enterprise Linux (RHEL) 6 DMMP device, you must verify that it is not part of a Logical Volume Manager (LVM) and that it does not have a file system.

Steps
  1. Gather pretransition information from the Inventory Assessment Workbook.

  2. Verify that the DMMP device exists in the /dev/mapper directory:

    ls /dev/mapper/ DMMP_device_name

    If the DMMP device is not displayed, the device might be using an alias or a user-friendly name.

  3. Determine whether the DMMP device is part of an LVM and whether the DMMP device has a file system:

    blkid

    If the DMMP device is not part of an LVM and has no file system the device entry should not be displayed in blkidoutput.