Oracle Cloud Infrastructure Documentation

Checking If a Volume Attachment is Multipath-Enabled

Learn how to check if a resource attached to a volume is multipath-enabled.

  • Following are possible values for the Multipath column (Block Volume or Compute).

    • Yes: The volume is configured for the Ultra High Performance level and the volume attachment is multipath-enabled. No further action is required.

    • No without a warning icon: The volume isn't configured for the Ultra High Performance level, the volume doesn't need to be multipath-enabled. No further action is required.
    • No with a warning icon: The volume is configured for the Ultra High Performance level, but the volume attachment isn't multipath-enabled. To achieve optimal performance, you need to ensure the volume is attached to a supported instance shape, and that the required prerequisites are configured.

    To check this value in Block Volume:

    1. On the Block Volumes list page, select the volume that you want. If you need help finding the list page or the volumes, see Listing Volumes.
    2. On the details page, select Attached Instances.
    3. Check the value displayed in the Multipath column.

    To check this value in Compute:

    1. On the Compute Instances list page, select the instance that you want to view. If you need help finding the list page, see Listing Instances.
    2. On the details page, perform one of the following actions depending on the option that you see:
      • Select Storage and then scroll down to Attached block volumes.
      • Select Attached Block Volumes.
    3. Check the value displayed in the Multipath column.

  • Use the oci compute volume-attachment get command and specify the --volume-attachment-id parameter to check the multipath enablement of a volume:

    oci compute volume-attachment get --volume-attachment-id <volume_group_id>

    For example:

    oci compute volume-attachment get --volume-attachment-id ocid1.volumeattachment.oc1.phx.<unique_ID>

    The is-multipath property will be true for multipath-enabled attachments and false for attachments that are not multipath-enabled.

    For a complete list of parameters and values for CLI commands, see the CLI Command Reference.

  • Run the GetVolumeAttachment operation and specify the volumeAttachmentId to get information for a volume attachment.

    The is-multipath property will be true for multipath-enabled attachments and false for attachments that are not multipath-enabled.